diff --git a/guides/source/active_support_instrumentation.md b/guides/source/active_support_instrumentation.md
index cb0d13f959a207544a57454ddf218dd54e986270..aa08b0f055c71cbba32cba1bed07556badc05829 100644
--- a/guides/source/active_support_instrumentation.md
+++ b/guides/source/active_support_instrumentation.md
@@ -187,8 +187,8 @@ INFO. Additional keys may be added by the caller.
 }
 ```
 
-ActionView
-----------
+Action View
+-----------
 
 ### render_template.action_view