diff --git a/module/mr/model.php b/module/mr/model.php
index 281d48699f..43aa536fb1 100644
--- a/module/mr/model.php
+++ b/module/mr/model.php
@@ -425,7 +425,7 @@ class mrModel extends model
     public function apiAcceptMR($gitlabID, $projectID, $MRID, $sudo = "")
     {
         $url = sprintf($this->gitlab->getApiRoot($gitlabID), "/projects/$projectID/merge_requests/$MRID/merge");
-        if($sudo != "") return json_decode(commonModel::http($url, $data = null, $options = array(CURLOPT_CUSTOMREQUEST => 'PUT'), $headers = array("sudo: 0")));
+        if($sudo != "") return json_decode(commonModel::http($url, $data = null, $options = array(CURLOPT_CUSTOMREQUEST => 'PUT'), $headers = array("sudo: {$sudo}")));
         return json_decode(commonModel::http($url, $data = null, $options = array(CURLOPT_CUSTOMREQUEST => 'PUT')));
     }