diff --git a/functions/session.xml b/functions/session.xml
index c35b9b78c7..f13148f9ba 100644
--- a/functions/session.xml
+++ b/functions/session.xml
@@ -223,7 +223,7 @@ close
       cleaned up.</simpara></listitem>
 
      <listitem><simpara>
-      <literal>session.extern_referer_check</literal> determines
+      <literal>session.referer_check</literal> determines
       whether session ids referred to by external sites will be
       eliminated. If session ids are propagated using the URL method,
       users not knowing about the impact might publish session