diff --git a/Tools/idle/extend.py b/Tools/idle/extend.py
index 05095563eec..de90f3677fa 100644
--- a/Tools/idle/extend.py
+++ b/Tools/idle/extend.py
@@ -8,4 +8,5 @@
     "FormatParagraph",
     "ZoomHeight",
     "ScriptBinding",
+    "CallTips",
 ]