diff --git a/src/Mod/Draft/WorkingPlane.py b/src/Mod/Draft/WorkingPlane.py
index 401cc4e055..fa209a0059 100644
--- a/src/Mod/Draft/WorkingPlane.py
+++ b/src/Mod/Draft/WorkingPlane.py
@@ -658,7 +658,7 @@ class Plane:
             if geom.isNull():
                 FreeCAD.Console.PrintError(translate(
                     "draft",
-                    "Object with null Part.Shape geometry:'{}".format(
+                    "Object with null Part.Shape geometry:'{}'".format(
                         obj.ObjectName)) + "\n")
                 return False
             if obj.HasSubObjects: