diff --git a/boards/lora-e5-dev/board.c b/boards/lora-e5-dev/board.c
index 0beee8e19a..b3a9421aad 100644
--- a/boards/lora-e5-dev/board.c
+++ b/boards/lora-e5-dev/board.c
@@ -18,6 +18,7 @@
  * @}
  */
 
+#include <assert.h>
 #include "kernel_defines.h"
 #include "cpu.h"
 #include "board.h"
@@ -72,6 +73,8 @@ void lora_e5_dev_sx126x_set_rf_mode(sx126x_t *dev, sx126x_rf_mode_t rf_mode)
         gpio_set(FE_CTRL2);
         break;
     default:
+        /* SX126X_RF_MODE_TX_LPA is not supported */
+        assert(0);
         break;
     }
 }
diff --git a/boards/lora-e5-dev/include/board.h b/boards/lora-e5-dev/include/board.h
index dc5d8efd62..5e18636b6a 100644
--- a/boards/lora-e5-dev/include/board.h
+++ b/boards/lora-e5-dev/include/board.h
@@ -34,6 +34,7 @@ extern "C" {
  * @{
  */
 #define SX126X_PARAM_SPI                    (SPI_DEV(0))
+#define SX126X_PARAM_TX_PA_MODE             SX126X_RF_MODE_TX_HPA
 #if IS_USED(MODULE_SX126X_STM32WL)
 extern void lora_e5_dev_sx126x_set_rf_mode(sx126x_t *dev, sx126x_rf_mode_t rf_mode);
 #define SX126X_PARAM_SET_RF_MODE_CB         lora_e5_dev_sx126x_set_rf_mode