diff --git a/src/main.h b/src/main.h
index 16c76aca..7882e2a7 100644
--- a/src/main.h
+++ b/src/main.h
@@ -521,7 +521,7 @@ class MainFrame : public TopFrame
         
         void onFrequencyModeChange_(IRigFrequencyController*, uint64_t freq, IRigFrequencyController::Mode mode);
         void onRadioConnected_(IRigController* ptr);
-        void onRadioDisconnect_(IRigController* ptr);
+        void onRadioDisconnected_(IRigController* ptr);
 };
 
 void resample_for_plot(struct FIFO *plotFifo, short buf[], int length, int fs);