diff --git a/lib/dingapi/dingapi.class.php b/lib/dingapi/dingapi.class.php
index 13daecea38..fad581588e 100644
--- a/lib/dingapi/dingapi.class.php
+++ b/lib/dingapi/dingapi.class.php
@@ -57,11 +57,12 @@ class dingapi
         $depts = $this->getAllDepts();
         if($this->isError()) return array('result' => 'fail', 'message' => $this->errors);
 
+        set_time_limit(0);
         $users = array();
         foreach($depts as $deptID => $deptName)
         {
             $response = $this->queryAPI($this->apiUrl . "user/simplelist?access_token={$this->token}&department_id={$deptID}");
-            if($this->isError()) return array('result' => 'fail', 'message' => $this->errors);
+            if($this->isError()) continue;
 
             foreach($response->userlist as $user) $users[$user->name] = $user->userid;
         }