diff --git a/radiant/groupdialog.cpp b/radiant/groupdialog.cpp
index 03a15de..65a183e 100644
--- a/radiant/groupdialog.cpp
+++ b/radiant/groupdialog.cpp
@@ -622,7 +622,10 @@ void AssignModel(){
 		gtk_entry_set_text( GTK_ENTRY( EntWidgets[EntValueField] ), str.GetBuffer() );
 		AddProp();
 		edit_entity->brushes.onext->bModelFailed = false;
+		return;
 	}
+	Undo_End();
+	g_pParentWnd->OnSelectionDelete();
 }
 
 /*