diff --git a/Modules/Internal/Http/Controllers/Api/CorporateMemberController.php b/Modules/Internal/Http/Controllers/Api/CorporateMemberController.php
index aeed6085..cc6a1be1 100644
--- a/Modules/Internal/Http/Controllers/Api/CorporateMemberController.php
+++ b/Modules/Internal/Http/Controllers/Api/CorporateMemberController.php
@@ -37,8 +37,9 @@ class CorporateMemberController extends Controller
             // ->where('corporate_id', $corporate_id)
             ->select('members.*')
             ->selectSub(function ($query) {
-                $query->selectRaw('GROUP_CONCAT(files_mcu.original_name)')->from('files_mcu')
-                      ->whereRaw('files_mcu.memberid = members.id');
+                $query->selectRaw('GROUP_CONCAT(files_mcu.original_name SEPARATOR ", ")')
+                    ->from('files_mcu')
+                    ->whereRaw('files_mcu.memberid = members.id');
             }, 'original_names')
             ->leftJoin('files_mcu', 'members.id', '=', 'files_mcu.memberid')
             ->groupBy('members.id')