diff --git a/src/mesh/STM32WLE5JCInterface.cpp b/src/mesh/STM32WLE5JCInterface.cpp
index ad1f675b6..374832fee 100644
--- a/src/mesh/STM32WLE5JCInterface.cpp
+++ b/src/mesh/STM32WLE5JCInterface.cpp
@@ -19,7 +19,9 @@ bool STM32WLE5JCInterface::init()
     RadioLibInterface::init();
 
     // https://github.com/Seeed-Studio/LoRaWan-E5-Node/blob/main/Middlewares/Third_Party/SubGHz_Phy/stm32_radio_driver/radio_driver.c
+    #if (!defined(_VARIANT_RAK3172_))
     setTCXOVoltage(1.7);
+    #endif
 
     lora.setRfSwitchTable(rfswitch_pins, rfswitch_table);
 
@@ -42,4 +44,4 @@ bool STM32WLE5JCInterface::init()
     return res == RADIOLIB_ERR_NONE;
 }
 
-#endif // ARCH_STM32WL
\ No newline at end of file
+#endif // ARCH_STM32WL