diff --git a/filter/source/msfilter/msdffimp.cxx b/filter/source/msfilter/msdffimp.cxx
index 68cfc3a79da2..3d2a7dc5b98a 100644
--- a/filter/source/msfilter/msdffimp.cxx
+++ b/filter/source/msfilter/msdffimp.cxx
@@ -6116,7 +6116,7 @@ sal_Bool SvxMSDffManager::GetShape(sal_uLong nId, SdrObject*&         rpShape,
 
         // restore old alte FilePos of the stream(s)
         rStCtrl.Seek( nOldPosCtrl );
-        if( &rStCtrl != pStData )
+        if( &rStCtrl != pStData && pStData )
             pStData->Seek( nOldPosData );
         return ( 0 != rpShape );
     }