diff --git a/src/effects/VST/VSTControlMSW.cpp b/src/effects/VST/VSTControlMSW.cpp
index 307f6d39e..2f88ab0be 100644
--- a/src/effects/VST/VSTControlMSW.cpp
+++ b/src/effects/VST/VSTControlMSW.cpp
@@ -20,6 +20,11 @@ VSTControl::VSTControl()
 
 VSTControl::~VSTControl()
 {
+   if (mHwnd)
+   {
+      mLink->callDispatcher(effEditClose, 0, 0, mHwnd, 0.0);
+      mHwnd = 0;
+   }
 }
 
 bool VSTControl::Create(wxWindow *parent, VSTEffectLink *link)