diff --git a/drivers/sx127x/sx127x.c b/drivers/sx127x/sx127x.c
index 819cbef4e5..a748e25719 100644
--- a/drivers/sx127x/sx127x.c
+++ b/drivers/sx127x/sx127x.c
@@ -180,7 +180,7 @@ void sx127x_init_radio_settings(sx127x_t *dev)
     sx127x_set_fixed_header_len_mode(dev, LORA_FIXED_HEADER_LEN_MODE_DEFAULT);
     sx127x_set_iq_invert(dev, LORA_IQ_INVERTED_DEFAULT);
     sx127x_set_payload_length(dev, LORA_PAYLOAD_LENGTH_DEFAULT);
-    sx127x_set_preamble_length(dev, LORA_PREAMBLE_LENGTH_DEFAULT);
+    sx127x_set_preamble_length(dev, CONFIG_LORA_PREAMBLE_LENGTH_DEFAULT);
     sx127x_set_symbol_timeout(dev, LORA_SYMBOL_TIMEOUT_DEFAULT);
     sx127x_set_rx_single(dev, SX127X_RX_SINGLE);
     sx127x_set_tx_timeout(dev, SX127X_TX_TIMEOUT_DEFAULT);
diff --git a/sys/include/net/lora.h b/sys/include/net/lora.h
index a704b3c6d6..2a72d914a2 100644
--- a/sys/include/net/lora.h
+++ b/sys/include/net/lora.h
@@ -39,8 +39,8 @@ extern "C" {
 #endif
 
 /** @brief Preamble length, same for Tx and Rx */
-#ifndef LORA_PREAMBLE_LENGTH_DEFAULT
-#define LORA_PREAMBLE_LENGTH_DEFAULT           (8U)
+#ifndef CONFIG_LORA_PREAMBLE_LENGTH_DEFAULT
+#define CONFIG_LORA_PREAMBLE_LENGTH_DEFAULT         (8U)
 #endif
 
 /** @brief Symbols timeout (s) */