diff --git a/Overview.src.html b/Overview.src.html
index 51da0536c..e42aeb23b 100644
--- a/Overview.src.html
+++ b/Overview.src.html
@@ -604,6 +604,8 @@ <h3>Basic fetch</h3>
 <span data-anolis-spec=url title=concept-url-scheme>scheme</span> and run the associated
 steps:
 
+<p class=note><span title=concept-basic-fetch>Basic fetch</span> is an internal algorithm of this specification. If you're a specification editor, you only ever need to invoke <span title=concept-fetch>fetch</a> from other specifications.
+
 <dl class=switch>
  <dt>"<code title>about</code>"
  <dd>