diff --git a/actionpack/lib/action_view/helpers/tag_helper.rb b/actionpack/lib/action_view/helpers/tag_helper.rb
index a3a8185f40..ee10f8f3bb 100644
--- a/actionpack/lib/action_view/helpers/tag_helper.rb
+++ b/actionpack/lib/action_view/helpers/tag_helper.rb
@@ -62,7 +62,7 @@ module ActionView
       #   content_tag("select", options, :multiple => true)
       #    # => <select multiple="multiple">...options...</select>
       #
-      #   <% content_tag :div, :class => "strong" do -%>
+      #   <%= content_tag :div, :class => "strong" do -%>
       #     Hello world!
       #   <% end -%>
       #    # => <div class="strong">Hello world!</div>