diff --git a/devel/scheme/api/glue-auto-doc.en.tm b/devel/scheme/api/glue-auto-doc.en.tm
index 616aa5c..279a59b 100644
--- a/devel/scheme/api/glue-auto-doc.en.tm
+++ b/devel/scheme/api/glue-auto-doc.en.tm
@@ -3650,6 +3650,14 @@ source code.
     <scm|string>.
   </explain>
 
+  <\explain>
+    <scm|(clean-html <scm-arg|content>)>
+<explain-synopsis|no synopsis>
+  <|explain>
+    Calls the <c++> function <cpp|clean_html> which returns
+    <scm|tree>.
+  </explain>
+
   <\explain>
     <scm|(upgrade-tmml <scm-arg|scheme_tree>)>
 <explain-synopsis|no synopsis>