diff --git a/doc/SceneEditor/sceneEditor.py b/doc/SceneEditor/sceneEditor.py
index 8833adcc74..fb70655a0d 100644
--- a/doc/SceneEditor/sceneEditor.py
+++ b/doc/SceneEditor/sceneEditor.py
@@ -104,7 +104,7 @@ class myLevelEditor(AppShell):
         if self.wantTK:
             pass
         else:
-            taskMgr.remove('tkloop')
+            taskMgr.remove('tkLoop')
             spawnTkLoop()
         ## Set up window frame
         INITOPT = Pmw.INITOPT