diff --git a/app/Admin/Controllers/v3/CouponController.php b/app/Admin/Controllers/v3/CouponController.php
index 267c7a3..ede6c1e 100644
--- a/app/Admin/Controllers/v3/CouponController.php
+++ b/app/Admin/Controllers/v3/CouponController.php
@@ -159,8 +159,8 @@ class CouponController extends AdminController
                 });
                 $show->activity_available->as(function($activityAvailable){
                     $text = '';
-                    $activityAvailable = json_decode($activityAvailable);
                     if(!empty($activityAvailable)){
+                        $activityAvailable = is_array($activityAvailable) ? $activityAvailable : json_decode($activityAvailable);
                         foreach($activityAvailable as $value){
                             $value = CouponModel::$activityAvailable[$value] ?? '';
                             $text .= '['.$value.'] ';
@@ -170,8 +170,8 @@ class CouponController extends AdminController
                 });
                 $show->tags->as(function($tags){
                     $text = '';
-                    $tags = json_decode($tags);
                     if(!empty($tags)){
+                        $tags = is_array($tags) ? $tags : json_decode($tags);
                         foreach($tags as $value){
                             $value = $value ?? '';
                             $text .= '['.$value.'] ';