Missing period

guides/source/action_view_helpers.md

@@ -889,7 +889,7 @@ end
 Now, you can call `html_title` in your layout to retrieve the content stored in
 the `content_for` block. If a `content_for` block is set on the page being
 rendered, such as in the case of the special_page, it will display the title.
-Otherwise, it will display the default text "Default Title"
+Otherwise, it will display the default text "Default Title".
 
 WARNING: `content_for` is ignored in caches. So you shouldn’t use it for
 elements that will be fragment cached.