diff --git a/variants/waveshare_rp2040_lora/platformio.ini b/variants/waveshare_rp2040_lora/platformio.ini
index 1f7fb02f..b930683d 100644
--- a/variants/waveshare_rp2040_lora/platformio.ini
+++ b/variants/waveshare_rp2040_lora/platformio.ini
@@ -20,7 +20,7 @@ build_flags = ${rp2040_base.build_flags}
   -D P_LORA_MOSI=15
   -D P_LORA_TX_LED=25
   -D SX126X_DIO2_AS_RF_SWITCH=true
-  -D SX126X_DIO3_TCXO_VOLTAGE=0
+  -D SX126X_DIO3_TCXO_VOLTAGE=1.8
   -D SX126X_RX_BOOSTED_GAIN=1
   -D LORA_TX_POWER=22
 ; Debug options