diff --git a/src/visual/TuningCanvas.cpp b/src/visual/TuningCanvas.cpp
index ddd0703..d6b1471 100644
--- a/src/visual/TuningCanvas.cpp
+++ b/src/visual/TuningCanvas.cpp
@@ -269,7 +269,7 @@ void TuningCanvas::StepTuner(ActiveState state, TuningDirection tuningDir, int d
     }
 }
 
-void TuningCanvas::OnIdle(wxIdleEvent & /* event */) {
+void TuningCanvas::OnIdle(wxIdleEvent & event) {
     if (mouseTracker.mouseDown()) {
         if (downState != TUNING_HOVER_NONE) {
             dragAccum += 5.0*mouseTracker.getOriginDeltaMouseX();
diff --git a/src/visual/WaterfallCanvas.cpp b/src/visual/WaterfallCanvas.cpp
index d375825..4f67ad2 100644
--- a/src/visual/WaterfallCanvas.cpp
+++ b/src/visual/WaterfallCanvas.cpp
@@ -482,7 +482,7 @@ void WaterfallCanvas::OnKeyDown(wxKeyEvent& event) {
     }
 
 }
-void WaterfallCanvas::OnIdle(wxIdleEvent & /* event */) {
+void WaterfallCanvas::OnIdle(wxIdleEvent & event) {
     processInputQueue();
     Refresh();
 }