diff --git a/language-snippets.ent b/language-snippets.ent
index a669d1b368..1d35803f40 100644
--- a/language-snippets.ent
+++ b/language-snippets.ent
@@ -1232,6 +1232,7 @@ using public key authentication, use the
 <!ENTITY returns.http.response 'Returns the HTTP response(s) as string on
 success, or &false; on failure.'>
 <!ENTITY returns.http.false.orexits 'Returns &false; or <emphasis xmlns="http://docbook.org/ns/docbook">exits</emphasis> on success'>
+<!ENTITY returns.session.storage.retval 'The return value of the session storage (usually 0 on success, 1 on failure).'>
 <!ENTITY http.request.affects 'Affects the following request method(s) only:'>
 <!ENTITY http.request.affects.any 'Affects any request method.'>
 <!ENTITY http.response.class.php51 'the <link xmlns="http://docbook.org/ns/docbook" linkend="class.httpresponse">