diff --git a/main/auth/external_login/ldap.inc.php b/main/auth/external_login/ldap.inc.php
index 84164b6110..22f4222e29 100644
--- a/main/auth/external_login/ldap.inc.php
+++ b/main/auth/external_login/ldap.inc.php
@@ -125,6 +125,7 @@ function extldap_authenticate($username, $password)
   }
   else {
     error_log('EXTLDAP : Wrong password for '.$user['dn']);
+    return false;
   }
 }