diff --git a/src/SMESHGUI/SMESHGUI_VTKUtils.cxx b/src/SMESHGUI/SMESHGUI_VTKUtils.cxx
index 569dc023b..3d2840b9b 100644
--- a/src/SMESHGUI/SMESHGUI_VTKUtils.cxx
+++ b/src/SMESHGUI/SMESHGUI_VTKUtils.cxx
@@ -149,7 +149,7 @@ namespace SMESH
             vtkActorCollection *actors = aCopy.GetActors();
             for (int i = 0; i < actors->GetNumberOfItems(); ++i ) {
               // size of actors changes inside the loop
-              while (SMESH_Actor *actor = dynamic_cast<SMESH_Actor*>(actors->GetItemAsObject(i)))
+              if (SMESH_Actor *actor = dynamic_cast<SMESH_Actor*>(actors->GetItemAsObject(i)))
               {
                 vtkWnd->RemoveActor(actor);
                 actor->Delete();