diff --git a/C4/Auth.pm b/C4/Auth.pm
index 6c45d42d1d..20f8d6a681 100644
--- a/C4/Auth.pm
+++ b/C4/Auth.pm
@@ -918,7 +918,6 @@ sub checkauth {
                 $cookie = $cookie_mgr->clear_unless( $query->cookie, @$cookie );
                 C4::Context::_unset_userenv($sessionID);
                 $sessionID = undef;
-                undef $userid; # IMPORTANT: this assures us a new session in code below
 
                 if ($cas and $caslogout) {
                     logout_cas($query, $type);