diff --git a/fpicker/source/win32/filepicker/IVistaFilePickerInternalNotify.hxx b/fpicker/source/win32/filepicker/IVistaFilePickerInternalNotify.hxx
index ae08d3633c2d..3501a37c94f9 100644
--- a/fpicker/source/win32/filepicker/IVistaFilePickerInternalNotify.hxx
+++ b/fpicker/source/win32/filepicker/IVistaFilePickerInternalNotify.hxx
@@ -45,6 +45,9 @@ class IVistaFilePickerInternalNotify
         virtual void onAutoExtensionChanged (bool bChecked) = 0;
 
         virtual bool onFileTypeChanged( UINT nTypeIndex ) = 0;
+
+    protected:
+        ~IVistaFilePickerInternalNotify() {}
 };
 
 }}}
diff --git a/fpicker/source/win32/folderpicker/FopEvtDisp.hxx b/fpicker/source/win32/folderpicker/FopEvtDisp.hxx
index 8fc481f03922..ffb35b7d8a37 100644
--- a/fpicker/source/win32/folderpicker/FopEvtDisp.hxx
+++ b/fpicker/source/win32/folderpicker/FopEvtDisp.hxx
@@ -29,6 +29,9 @@ public:
 
     // dispatches a FilePickerEvent to wherever
     virtual void SAL_CALL helpRequested( css::lang::EventObject aEvent ) const = 0;
+
+protected:
+    ~CFOPEventDispatcher() {}
 };
 
 #endif