diff --git a/app/Http/Controllers/Mobile/VisitController.php b/app/Http/Controllers/Mobile/VisitController.php
index ed96b32..e804612 100644
--- a/app/Http/Controllers/Mobile/VisitController.php
+++ b/app/Http/Controllers/Mobile/VisitController.php
@@ -327,7 +327,7 @@ class VisitController extends CommonController
         $list = $model->whereIn('idcard', $all['idcard'])->pluck('idcard');
         $diff = collect($all['idcard'])->diffAssoc($list);
         if($diff->isNotEmpty()){
-            array_values($diff->toArray());
+            $diff = array_values($diff->toArray());
         }
         return $this->success($diff);
     }