diff --git a/src/Mod/Draft/draftguitools/gui_annotationstyleeditor.py b/src/Mod/Draft/draftguitools/gui_annotationstyleeditor.py
index 8a3b9c2c4f..9c5e6f8091 100644
--- a/src/Mod/Draft/draftguitools/gui_annotationstyleeditor.py
+++ b/src/Mod/Draft/draftguitools/gui_annotationstyleeditor.py
@@ -186,7 +186,7 @@ class AnnotationStyleEditor(gui_base.GuiCommandSimplest):
                 if vobj.AnnotationStyle in self.renamed:
                     # the style has been renamed
                     # temporarily add the new style and switch to it
-                    vobj.AnnotationStyle = vobj.AnnotationStyle + [self.renamed[vobj.AnnotationStyle]]
+                    vobj.AnnotationStyle = [vobj.AnnotationStyle, self.renamed[vobj.AnnotationStyle]]
                     vobj.AnnotationStyle = self.renamed[vobj.AnnotationStyle]
                 if vobj.AnnotationStyle in styles:
                     if vobj.AnnotationStyle in changedstyles: