diff --git a/boards/common/e104-bt50xxa-tb/include/periph_conf.h b/boards/common/e104-bt50xxa-tb/include/periph_conf.h
index 33f8632ab9..3a6a4b1ca9 100644
--- a/boards/common/e104-bt50xxa-tb/include/periph_conf.h
+++ b/boards/common/e104-bt50xxa-tb/include/periph_conf.h
@@ -74,8 +74,8 @@ static const i2c_conf_t i2c_config[] = {
 static const uart_conf_t uart_config[] = {
     { /* Mapped to USB virtual COM port */
         .dev        = NRF_UARTE0,
-        .rx_pin     = GPIO_PIN(0,14),
-        .tx_pin     = GPIO_PIN(0,18),
+        .rx_pin     = GPIO_PIN(0, 14),
+        .tx_pin     = GPIO_PIN(0, 18),
 #ifdef MODULE_PERIPH_UART_HW_FC
         .rts_pin    = GPIO_UNDEF,
         .cts_pin    = GPIO_UNDEF,
diff --git a/boards/common/particle-mesh/include/periph_conf_common.h b/boards/common/particle-mesh/include/periph_conf_common.h
index c2bb6e3782..8557594a8a 100644
--- a/boards/common/particle-mesh/include/periph_conf_common.h
+++ b/boards/common/particle-mesh/include/periph_conf_common.h
@@ -39,9 +39,9 @@ extern "C" {
 static const spi_conf_t spi_config[] = {
     {
         .dev  = NRF_SPIM0,
-        .sclk = GPIO_PIN(1,15),
-        .mosi = GPIO_PIN(1,13),
-        .miso = GPIO_PIN(1,14),
+        .sclk = GPIO_PIN(1, 15),
+        .mosi = GPIO_PIN(1, 13),
+        .miso = GPIO_PIN(1, 14),
     }
 };
 
diff --git a/boards/feather-nrf52840/include/periph_conf.h b/boards/feather-nrf52840/include/periph_conf.h
index 33d54eccd5..12b0777730 100644
--- a/boards/feather-nrf52840/include/periph_conf.h
+++ b/boards/feather-nrf52840/include/periph_conf.h
@@ -37,8 +37,8 @@ extern "C" {
 static const uart_conf_t uart_config[] = {
     {
         .dev        = NRF_UARTE0,
-        .rx_pin     = GPIO_PIN(0,24),
-        .tx_pin     = GPIO_PIN(0,25),
+        .rx_pin     = GPIO_PIN(0, 24),
+        .tx_pin     = GPIO_PIN(0, 25),
 #ifdef MODULE_PERIPH_UART_HW_FC
         .rts_pin    = GPIO_UNDEF,
         .cts_pin    = GPIO_UNDEF,
diff --git a/boards/mcb2388/include/board.h b/boards/mcb2388/include/board.h
index 96baa5c618..40735cd30b 100644
--- a/boards/mcb2388/include/board.h
+++ b/boards/mcb2388/include/board.h
@@ -99,8 +99,8 @@ extern "C" {
 #define HD44780_PARAM_PIN_RS            GPIO_PIN(1, 28)
 #define HD44780_PARAM_PIN_RW            GPIO_PIN(1, 29)
 #define HD44780_PARAM_PIN_ENABLE        GPIO_PIN(1, 31)
-#define HD44780_PARAM_PINS_DATA         {   GPIO_PIN(1,24), GPIO_PIN(1,25), \
-                                            GPIO_PIN(1,26), GPIO_PIN(1,27), \
+#define HD44780_PARAM_PINS_DATA         {   GPIO_PIN(1, 24), GPIO_PIN(1, 25), \
+                                            GPIO_PIN(1, 26), GPIO_PIN(1, 27), \
                                             GPIO_UNDEF,     GPIO_UNDEF,     \
                                             GPIO_UNDEF,     GPIO_UNDEF      }
 /** @} */
diff --git a/boards/nrf52832-mdk/include/periph_conf.h b/boards/nrf52832-mdk/include/periph_conf.h
index b3ac5561f5..f98988b054 100644
--- a/boards/nrf52832-mdk/include/periph_conf.h
+++ b/boards/nrf52832-mdk/include/periph_conf.h
@@ -36,8 +36,8 @@ extern "C" {
  * @{
  */
 #define UART_NUMOF          (1U)
-#define UART_PIN_RX         GPIO_PIN(0,19)
-#define UART_PIN_TX         GPIO_PIN(0,20)
+#define UART_PIN_RX         GPIO_PIN(0, 19)
+#define UART_PIN_TX         GPIO_PIN(0, 20)
 /** @} */
 
 #ifdef __cplusplus
diff --git a/boards/nrf52840-mdk/include/periph_conf.h b/boards/nrf52840-mdk/include/periph_conf.h
index 905708fe60..67b75341b8 100644
--- a/boards/nrf52840-mdk/include/periph_conf.h
+++ b/boards/nrf52840-mdk/include/periph_conf.h
@@ -38,8 +38,8 @@ extern "C" {
 static const uart_conf_t uart_config[] = {
     {
         .dev        = NRF_UARTE0,
-        .rx_pin     = GPIO_PIN(0,19),
-        .tx_pin     = GPIO_PIN(0,20),
+        .rx_pin     = GPIO_PIN(0, 19),
+        .tx_pin     = GPIO_PIN(0, 20),
 #ifdef MODULE_PERIPH_UART_HW_FC
         .rts_pin    = GPIO_UNDEF,
         .cts_pin    = GPIO_UNDEF,
diff --git a/boards/nrf52840dk/include/periph_conf.h b/boards/nrf52840dk/include/periph_conf.h
index b615b9030c..9e06924ab5 100644
--- a/boards/nrf52840dk/include/periph_conf.h
+++ b/boards/nrf52840dk/include/periph_conf.h
@@ -55,8 +55,8 @@ static const spi_conf_t spi_config[] = {
 static const uart_conf_t uart_config[] = {
     { /* Mapped to USB virtual COM port */
         .dev        = NRF_UARTE0,
-        .rx_pin     = GPIO_PIN(0,8),
-        .tx_pin     = GPIO_PIN(0,6),
+        .rx_pin     = GPIO_PIN(0, 8),
+        .tx_pin     = GPIO_PIN(0, 6),
 #ifdef MODULE_PERIPH_UART_HW_FC
         .rts_pin    = GPIO_UNDEF,
         .cts_pin    = GPIO_UNDEF,
@@ -65,8 +65,8 @@ static const uart_conf_t uart_config[] = {
     },
     { /* Mapped to Arduino D0/D1 pins */
         .dev        = NRF_UARTE1,
-        .rx_pin     = GPIO_PIN(1,1),
-        .tx_pin     = GPIO_PIN(1,2),
+        .rx_pin     = GPIO_PIN(1, 1),
+        .tx_pin     = GPIO_PIN(1, 2),
 #ifdef MODULE_PERIPH_UART_HW_FC
         .rts_pin    = GPIO_UNDEF,
         .cts_pin    = GPIO_UNDEF,
diff --git a/boards/nrf52dk/include/periph_conf.h b/boards/nrf52dk/include/periph_conf.h
index c2111f2875..e0d7991259 100644
--- a/boards/nrf52dk/include/periph_conf.h
+++ b/boards/nrf52dk/include/periph_conf.h
@@ -49,8 +49,8 @@ static const spi_conf_t spi_config[] = {
  * @{
  */
 #define UART_NUMOF          (1U)
-#define UART_PIN_RX         GPIO_PIN(0,8)
-#define UART_PIN_TX         GPIO_PIN(0,6)
+#define UART_PIN_RX         GPIO_PIN(0, 8)
+#define UART_PIN_TX         GPIO_PIN(0, 6)
 /** @} */
 
 #ifdef __cplusplus
diff --git a/boards/particle-argon/include/periph_conf.h b/boards/particle-argon/include/periph_conf.h
index 0a2d639c42..1b90aa51a8 100644
--- a/boards/particle-argon/include/periph_conf.h
+++ b/boards/particle-argon/include/periph_conf.h
@@ -34,8 +34,8 @@ extern "C" {
 static const uart_conf_t uart_config[] = {
     {
         .dev        = NRF_UARTE0,
-        .rx_pin     = GPIO_PIN(0,8),
-        .tx_pin     = GPIO_PIN(0,6),
+        .rx_pin     = GPIO_PIN(0, 8),
+        .tx_pin     = GPIO_PIN(0, 6),
 #ifdef MODULE_PERIPH_UART_HW_FC
         .rts_pin    = GPIO_UNDEF,
         .cts_pin    = GPIO_UNDEF,
@@ -44,11 +44,11 @@ static const uart_conf_t uart_config[] = {
     },
     {
         .dev        = NRF_UARTE1,
-        .rx_pin     = GPIO_PIN(1,5),
-        .tx_pin     = GPIO_PIN(1,4),
+        .rx_pin     = GPIO_PIN(1, 5),
+        .tx_pin     = GPIO_PIN(1, 4),
 #ifdef MODULE_PERIPH_UART_HW_FC
-        .rts_pin    = GPIO_PIN(1,6),
-        .cts_pin    = GPIO_PIN(1,7),
+        .rts_pin    = GPIO_PIN(1, 6),
+        .cts_pin    = GPIO_PIN(1, 7),
 #endif
         .irqn       = UARTE1_IRQn,
     },
diff --git a/boards/particle-boron/include/periph_conf.h b/boards/particle-boron/include/periph_conf.h
index df77a972b4..44394cb069 100644
--- a/boards/particle-boron/include/periph_conf.h
+++ b/boards/particle-boron/include/periph_conf.h
@@ -34,8 +34,8 @@ extern "C" {
 static const uart_conf_t uart_config[] = {
     {
         .dev        = NRF_UARTE0,
-        .rx_pin     = GPIO_PIN(0,8),
-        .tx_pin     = GPIO_PIN(0,6),
+        .rx_pin     = GPIO_PIN(0, 8),
+        .tx_pin     = GPIO_PIN(0, 6),
 #ifdef MODULE_PERIPH_UART_HW_FC
         .rts_pin    = GPIO_UNDEF,
         .cts_pin    = GPIO_UNDEF,
@@ -44,11 +44,11 @@ static const uart_conf_t uart_config[] = {
     },
     {
         .dev        = NRF_UARTE1,
-        .rx_pin     = GPIO_PIN(1,4),
-        .tx_pin     = GPIO_PIN(1,5),
+        .rx_pin     = GPIO_PIN(1, 4),
+        .tx_pin     = GPIO_PIN(1, 5),
 #ifdef MODULE_PERIPH_UART_HW_FC
-        .rts_pin    = GPIO_PIN(1,7),
-        .cts_pin    = GPIO_PIN(1,6),
+        .rts_pin    = GPIO_PIN(1, 7),
+        .cts_pin    = GPIO_PIN(1, 6),
 #endif
         .irqn       = UARTE1_IRQn,
     },
diff --git a/boards/particle-xenon/include/periph_conf.h b/boards/particle-xenon/include/periph_conf.h
index 8f741ce936..fddd037f4e 100644
--- a/boards/particle-xenon/include/periph_conf.h
+++ b/boards/particle-xenon/include/periph_conf.h
@@ -34,8 +34,8 @@ extern "C" {
 static const uart_conf_t uart_config[] = {
     {
         .dev        = NRF_UARTE0,
-        .rx_pin     = GPIO_PIN(0,8),
-        .tx_pin     = GPIO_PIN(0,6),
+        .rx_pin     = GPIO_PIN(0, 8),
+        .tx_pin     = GPIO_PIN(0, 6),
 #ifdef MODULE_PERIPH_UART_HW_FC
         .rts_pin    = GPIO_UNDEF,
         .cts_pin    = GPIO_UNDEF,
@@ -44,11 +44,11 @@ static const uart_conf_t uart_config[] = {
     },
     {
         .dev        = NRF_UARTE1,
-        .rx_pin     = GPIO_PIN(1,10),
-        .tx_pin     = GPIO_PIN(1,8),
+        .rx_pin     = GPIO_PIN(1, 10),
+        .tx_pin     = GPIO_PIN(1, 8),
 #ifdef MODULE_PERIPH_UART_HW_FC
-        .rts_pin    = GPIO_PIN(1,3),
-        .cts_pin    = GPIO_PIN(1,11),
+        .rts_pin    = GPIO_PIN(1, 3),
+        .cts_pin    = GPIO_PIN(1, 11),
 #endif
         .irqn       = UARTE1_IRQn,
     },
diff --git a/boards/reel/include/periph_conf.h b/boards/reel/include/periph_conf.h
index da432298c2..a35a030b71 100644
--- a/boards/reel/include/periph_conf.h
+++ b/boards/reel/include/periph_conf.h
@@ -37,8 +37,8 @@ extern "C" {
 static const uart_conf_t uart_config[] = {
     {
         .dev        = NRF_UARTE0,
-        .rx_pin     = GPIO_PIN(0,8),
-        .tx_pin     = GPIO_PIN(0,6),
+        .rx_pin     = GPIO_PIN(0, 8),
+        .tx_pin     = GPIO_PIN(0, 6),
 #ifdef MODULE_PERIPH_UART_HW_FC
         .rts_pin    = GPIO_UNDEF,
         .cts_pin    = GPIO_UNDEF,
diff --git a/boards/remote-revb/include/board.h b/boards/remote-revb/include/board.h
index c8f78ef714..239f833e12 100644
--- a/boards/remote-revb/include/board.h
+++ b/boards/remote-revb/include/board.h
@@ -114,11 +114,11 @@
  * @{
  */
 #define SDCARD_SPI_PARAM_SPI       SPI_DEV(1)
-#define SDCARD_SPI_PARAM_CS        GPIO_PIN(0,7)
-#define SDCARD_SPI_PARAM_CLK       GPIO_PIN(2,4)
-#define SDCARD_SPI_PARAM_MOSI      GPIO_PIN(2,5)
-#define SDCARD_SPI_PARAM_MISO      GPIO_PIN(2,6)
-#define SDCARD_SPI_PARAM_POWER     GPIO_PIN(0,6)
+#define SDCARD_SPI_PARAM_CS        GPIO_PIN(0, 7)
+#define SDCARD_SPI_PARAM_CLK       GPIO_PIN(2, 4)
+#define SDCARD_SPI_PARAM_MOSI      GPIO_PIN(2, 5)
+#define SDCARD_SPI_PARAM_MISO      GPIO_PIN(2, 6)
+#define SDCARD_SPI_PARAM_POWER     GPIO_PIN(0, 6)
 #define SDCARD_SPI_PARAM_POWER_AH  false
 /** @} */
 
diff --git a/drivers/grove_ledbar/include/grove_ledbar_params.h b/drivers/grove_ledbar/include/grove_ledbar_params.h
index bd0020c710..4f8097567c 100644
--- a/drivers/grove_ledbar/include/grove_ledbar_params.h
+++ b/drivers/grove_ledbar/include/grove_ledbar_params.h
@@ -34,14 +34,14 @@ extern "C"
  * @brief   Clock GPIO pin
  */
 #ifndef GROVE_LEDBAR_CLK
-#define GROVE_LEDBAR_CLK        (GPIO_PIN(0,1))
+#define GROVE_LEDBAR_CLK        (GPIO_PIN(0, 1))
 #endif
 
 /**
  * @brief   Data GPIO pin
  */
 #ifndef GROVE_LEDBAR_DAT
-#define GROVE_LEDBAR_DAT        (GPIO_PIN(0,2))
+#define GROVE_LEDBAR_DAT        (GPIO_PIN(0, 2))
 #endif
 
 /**
diff --git a/drivers/include/l3gxxxx.h b/drivers/include/l3gxxxx.h
index 7dc8bbc8ce..e7ed68eb39 100644
--- a/drivers/include/l3gxxxx.h
+++ b/drivers/include/l3gxxxx.h
@@ -898,9 +898,9 @@
  * | I2C address            | #L3GXXXX_I2C_ADDR | #L3GXXXX_I2C_ADDR_2 |
  * | SPI device             | #L3GXXXX_SPI_DEV  | SPI_DEV(0)          |
  * | SPI clock frequency    | #L3GXXXX_SPI_CLK  | SPI_CLK_1MHZ        |
- * | SPI CS signal          | #L3GXXXX_SPI_CS   | GPIO_PIN(0,0)       |
- * | `INT1` MCU pin         | #L3GXXXX_INT1_PIN | GPIO_PIN(0,1)       |
- * | `INT2/DRDY` MCU pin    | #L3GXXXX_INT2_PIN | GPIO_PIN(0,2)       |
+ * | SPI CS signal          | #L3GXXXX_SPI_CS   | GPIO_PIN(0, 0)      |
+ * | `INT1` MCU pin         | #L3GXXXX_INT1_PIN | GPIO_PIN(0, 1)      |
+ * | `INT2/DRDY` MCU pin    | #L3GXXXX_INT2_PIN | GPIO_PIN(0, 2)      |
  * </center><br>
  *
  * These hardware configurations can be overridden either by the board
@@ -909,7 +909,7 @@
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  * DRIVER=l3gd20h USEMODULE='l3gxxxx_irq_data` \
- * CLFAGS='-DL3GXXXX_INT2_PIN=GPIO_PIN\(0,5\)' \
+ * CLFAGS='-DL3GXXXX_INT2_PIN=GPIO_PIN\(0, 5\)' \
  * BOARD=... make -C tests/driver_l3gxxxx
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
diff --git a/drivers/include/pcf857x.h b/drivers/include/pcf857x.h
index e93f0c89c1..978a6e96bb 100644
--- a/drivers/include/pcf857x.h
+++ b/drivers/include/pcf857x.h
@@ -221,13 +221,13 @@
  *              .dev = I2C_DEV(0),
  *              .addr = 0,
  *              .exp = PCF857X_EXP_PCF8574A,
- *              .int_pin = GPIO_PIN(0,1),
+ *              .int_pin = GPIO_PIN(0, 1),
  *          },
  *          {
  *              .dev = I2C_DEV(0),
  *              .addr = 0,
  *              .exp = PCF857X_EXP_PCF8575,
- *              .int_pin = GPIO_PIN(0,2),
+ *              .int_pin = GPIO_PIN(0, 2),
  *          },
  *      };
  *
diff --git a/drivers/io1_xplained/include/io1_xplained_internals.h b/drivers/io1_xplained/include/io1_xplained_internals.h
index 19998da08b..33a485cfac 100644
--- a/drivers/io1_xplained/include/io1_xplained_internals.h
+++ b/drivers/io1_xplained/include/io1_xplained_internals.h
@@ -43,13 +43,13 @@ extern "C" {
  * @{
  */
 #define IO1_SDCARD_SPI_PARAM_SPI           SPI_DEV(1)
-#define IO1_SDCARD_SPI_PARAM_CS            GPIO_PIN(1,3)
-#define IO1_SDCARD_SPI_PARAM_CLK           GPIO_PIN(1,23)
-#define IO1_SDCARD_SPI_PARAM_MOSI          GPIO_PIN(1,22)
-#define IO1_SDCARD_SPI_PARAM_MISO          GPIO_PIN(1,2)
+#define IO1_SDCARD_SPI_PARAM_CS            GPIO_PIN(1, 3)
+#define IO1_SDCARD_SPI_PARAM_CLK           GPIO_PIN(1, 23)
+#define IO1_SDCARD_SPI_PARAM_MOSI          GPIO_PIN(1, 22)
+#define IO1_SDCARD_SPI_PARAM_MISO          GPIO_PIN(1, 2)
 #define IO1_SDCARD_SPI_PARAM_POWER         (GPIO_UNDEF)
 #define IO1_SDCARD_SPI_PARAM_POWER_AH      (true)
-#define IO1_SDCARD_SPI_PARAM_DETECT        GPIO_PIN(0,23)
+#define IO1_SDCARD_SPI_PARAM_DETECT        GPIO_PIN(0, 23)
 /** @} */
 
 /**
@@ -64,15 +64,15 @@ extern "C" {
  * @name    IO1 Xplained LED pin
  * @{
  */
-#define IO1_LED_PIN                    GPIO_PIN(0,18)
+#define IO1_LED_PIN                    GPIO_PIN(0, 18)
 /** @} */
 
 /**
  * @name    IO1 Xplained gpio pins
  * @{
  */
-#define IO1_GPIO1_PIN                  GPIO_PIN(0,13)
-#define IO1_GPIO2_PIN                  GPIO_PIN(0,28)
+#define IO1_GPIO1_PIN                  GPIO_PIN(0, 13)
+#define IO1_GPIO2_PIN                  GPIO_PIN(0, 28)
 /** @} */
 
 #ifdef __cplusplus
diff --git a/drivers/pulse_counter/include/pulse_counter_params.h b/drivers/pulse_counter/include/pulse_counter_params.h
index 72ad853b62..569f34939c 100644
--- a/drivers/pulse_counter/include/pulse_counter_params.h
+++ b/drivers/pulse_counter/include/pulse_counter_params.h
@@ -28,7 +28,7 @@ extern "C" {
 #endif
 
 #ifndef PULSE_COUNTER_GPIO
-#define PULSE_COUNTER_GPIO GPIO_PIN(0,18)
+#define PULSE_COUNTER_GPIO GPIO_PIN(0, 18)
 #endif
 
 #ifndef PULSE_COUNTER_GPIO_FLANK
diff --git a/drivers/sdcard_spi/include/sdcard_spi_params.h b/drivers/sdcard_spi/include/sdcard_spi_params.h
index 75bdca659b..ea99216acb 100644
--- a/drivers/sdcard_spi/include/sdcard_spi_params.h
+++ b/drivers/sdcard_spi/include/sdcard_spi_params.h
@@ -33,16 +33,16 @@ extern "C" {
 #define SDCARD_SPI_PARAM_SPI         SPI_DEV(0)
 #endif
 #ifndef SDCARD_SPI_PARAM_CS
-#define SDCARD_SPI_PARAM_CS          GPIO_PIN(2,4)
+#define SDCARD_SPI_PARAM_CS          GPIO_PIN(2, 4)
 #endif
 #ifndef SDCARD_SPI_PARAM_CLK
-#define SDCARD_SPI_PARAM_CLK         GPIO_PIN(2,5)
+#define SDCARD_SPI_PARAM_CLK         GPIO_PIN(2, 5)
 #endif
 #ifndef SDCARD_SPI_PARAM_MOSI
-#define SDCARD_SPI_PARAM_MOSI        GPIO_PIN(2,6)
+#define SDCARD_SPI_PARAM_MOSI        GPIO_PIN(2, 6)
 #endif
 #ifndef SDCARD_SPI_PARAM_MISO
-#define SDCARD_SPI_PARAM_MISO        GPIO_PIN(2,7)
+#define SDCARD_SPI_PARAM_MISO        GPIO_PIN(2, 7)
 #endif
 #ifndef SDCARD_SPI_PARAM_POWER
 #define SDCARD_SPI_PARAM_POWER       (GPIO_UNDEF)
diff --git a/drivers/srf04/include/srf04_params.h b/drivers/srf04/include/srf04_params.h
index 31fc03a1ed..40670e4f70 100644
--- a/drivers/srf04/include/srf04_params.h
+++ b/drivers/srf04/include/srf04_params.h
@@ -31,10 +31,10 @@ extern "C" {
  * @{
  */
 #ifndef SRF04_PARAM_TRIGGER
-#define SRF04_PARAM_TRIGGER     GPIO_PIN(0,13)
+#define SRF04_PARAM_TRIGGER     GPIO_PIN(0, 13)
 #endif
 #ifndef SRF04_PARAM_ECHO
-#define SRF04_PARAM_ECHO        GPIO_PIN(0,14)
+#define SRF04_PARAM_ECHO        GPIO_PIN(0, 14)
 #endif
 
 #ifndef SRF04_PARAMS
diff --git a/drivers/ws281x/include/ws281x_params.h b/drivers/ws281x/include/ws281x_params.h
index d668a0e170..1950e3f4eb 100644
--- a/drivers/ws281x/include/ws281x_params.h
+++ b/drivers/ws281x/include/ws281x_params.h
@@ -31,7 +31,7 @@ extern "C" {
  * @{
  */
 #ifndef WS281X_PARAM_PIN
-#define WS281X_PARAM_PIN                (GPIO_PIN(0,0)) /**< GPIO pin connected to the data pin of the first LED */
+#define WS281X_PARAM_PIN                (GPIO_PIN(0, 0)) /**< GPIO pin connected to the data pin of the first LED */
 #endif
 #ifndef WS281X_PARAM_NUMOF
 #define WS281X_PARAM_NUMOF              (8U)            /**< Number of LEDs chained */
diff --git a/tests/periph_qdec/boards_modded/nrf52840dk_mod/include/periph_conf.h b/tests/periph_qdec/boards_modded/nrf52840dk_mod/include/periph_conf.h
index 9358b30f93..7e931301de 100644
--- a/tests/periph_qdec/boards_modded/nrf52840dk_mod/include/periph_conf.h
+++ b/tests/periph_qdec/boards_modded/nrf52840dk_mod/include/periph_conf.h
@@ -50,8 +50,8 @@ static const qdec_conf_t qdec_config[] = {
 static const uart_conf_t uart_config[] = {
     { /* Mapped to USB virtual COM port */
         .dev        = NRF_UARTE0,
-        .rx_pin     = GPIO_PIN(0,8),
-        .tx_pin     = GPIO_PIN(0,6),
+        .rx_pin     = GPIO_PIN(0, 8),
+        .tx_pin     = GPIO_PIN(0, 6),
 #ifdef MODULE_PERIPH_UART_HW_FC
         .rts_pin    = GPIO_UNDEF,
         .cts_pin    = GPIO_UNDEF,