diff --git a/RNode_Firmware.ino b/RNode_Firmware.ino
index 8b3f83f..929a7cf 100644
--- a/RNode_Firmware.ino
+++ b/RNode_Firmware.ino
@@ -137,7 +137,7 @@ void setup() {
   // Validate board health, EEPROM and config
   validate_status();
 
-  if (!op_mode == MODE_TNC) LoRa.setFrequency(0);
+  if (op_mode != MODE_TNC) LoRa.setFrequency(0);
 }
 
 void lora_receive() {