diff --git a/starmath/source/edit.cxx b/starmath/source/edit.cxx
index f13aaf8c6246..43fc7557e7e2 100644
--- a/starmath/source/edit.cxx
+++ b/starmath/source/edit.cxx
@@ -369,6 +369,7 @@ void SmEditWindow::Command(const CommandEvent& rCEvt)
         xPopupMenu->SetSelectHdl(LINK(this, SmEditWindow, MenuSelectHdl));
 
         xPopupMenu->Execute( this, aPoint );
+        xPopupMenu.disposeAndClear();
         bForwardEvt = false;
     }
     else if (rCEvt.GetCommand() == CommandEventId::Wheel)