diff --git a/mnet/lib.php b/mnet/lib.php
index 074b86afb36..170522124ac 100644
--- a/mnet/lib.php
+++ b/mnet/lib.php
@@ -447,6 +447,7 @@ function mnet_update_sso_access_control($username, $mnet_host_id, $accessctrl) {
                 "SSO ACL: $accessctrl user '$username' from {$mnethost->name}");
     } else {
         // insert
+        $aclrecord = new stdClass();
         $aclrecord->username = $username;
         $aclrecord->accessctrl = $accessctrl;
         $aclrecord->mnet_host_id = $mnet_host_id;