diff --git a/topics/user_interface_components/tool_windows.md b/topics/user_interface_components/tool_windows.md
index 96d9563e1..bb1164bf0 100644
--- a/topics/user_interface_components/tool_windows.md
+++ b/topics/user_interface_components/tool_windows.md
@@ -1,4 +1,4 @@
-7[//]: # (title: Tool Windows)
+[//]: # (title: Tool Windows)
 
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