diff --git a/boards/openmote-b/board.c b/boards/openmote-b/board.c
index 222f23ea47..9c9c8cfdd4 100644
--- a/boards/openmote-b/board.c
+++ b/boards/openmote-b/board.c
@@ -29,6 +29,9 @@ void board_init(void)
     gpio_init(LED1_PIN, GPIO_OUT);
     gpio_init(LED2_PIN, GPIO_OUT);
     gpio_init(LED3_PIN, GPIO_OUT);
+    /* The boot pin must be set to input otherwise it may lock the bootloader */
+    gpio_init(BOOT_PIN, GPIO_IN);
+
     gpio_init(USER_BUTTON_PIN, GPIO_IN);
     gpio_init(RF_SWITCH_2_4_GHZ_PIN, GPIO_OUT);
     gpio_init(RF_SWITCH_SUB_GHZ_PIN, GPIO_OUT);
diff --git a/boards/openmote-b/include/board.h b/boards/openmote-b/include/board.h
index ca1aafedc7..47af179ebf 100644
--- a/boards/openmote-b/include/board.h
+++ b/boards/openmote-b/include/board.h
@@ -96,6 +96,8 @@
 #define CCA_BACKDOOR_ENABLE       (1)
 #define CCA_BACKDOOR_PORT_A_PIN   (6) /**< BSL_BOOT Pin */
 #define CCA_BACKDOOR_ACTIVE_LEVEL (0) /**< Active low */
+
+#define BOOT_PIN    GPIO_PIN(0, CCA_BACKDOOR_PORT_A_PIN) /**< BSL_BOOT Pin */
 /** @} */
 
 /**