diff --git a/assets/js/dxwaterfall.js b/assets/js/dxwaterfall.js
index 2cec43351..5694606db 100644
--- a/assets/js/dxwaterfall.js
+++ b/assets/js/dxwaterfall.js
@@ -480,7 +480,7 @@ function handleCATFrequencyUpdate(radioFrequency, updateCallback) {
             // Simplex mode - check TX frequency (main frequency)
             incomingHz = parseFloat(radioFrequency);
         }
-        
+
         var targetHz = dxWaterfall.targetFrequencyHz;
         var toleranceHz = DX_WATERFALL_CONSTANTS.THRESHOLDS.CAT_FREQUENCY_HZ; // 50 Hz tolerance
         var diff = Math.abs(incomingHz - targetHz);