diff --git a/src/widgets/Ruler.cpp b/src/widgets/Ruler.cpp
index b8b3911d2..d5cd00b6e 100644
--- a/src/widgets/Ruler.cpp
+++ b/src/widgets/Ruler.cpp
@@ -1650,6 +1650,10 @@ AdornedRulerPanel::AdornedRulerPanel(wxWindow* parent,
 
 AdornedRulerPanel::~AdornedRulerPanel()
 {
+   wxTheApp->Disconnect(EVT_AUDIOIO_CAPTURE,
+                        wxCommandEventHandler(AdornedRulerPanel::OnCapture),
+                        NULL,
+                        this);
    delete mBuffer;
 }