diff --git a/webapp/models/Gun.php b/webapp/models/Gun.php
index 03549c93..eba64702 100644
--- a/webapp/models/Gun.php
+++ b/webapp/models/Gun.php
@@ -299,7 +299,7 @@ class Gun extends BaseModel {
                                      $unlockTime - myself()->_getNowTime()),
             'unlock_trade_time' => $row['unlock_trade_time'],
             'offer_reward_state' => 0,
-            'tags' => $row['tags']?:'',
+            'tags' => isset($row['tags'])?$row['tags']:'',
 
             'lucky' => strval($gunLucky),
             'chip_strength_sum' => 0,
diff --git a/webapp/models/Hero.php b/webapp/models/Hero.php
index b3bbc525..fefcf3c5 100644
--- a/webapp/models/Hero.php
+++ b/webapp/models/Hero.php
@@ -297,7 +297,7 @@ class Hero extends BaseModel {
             'unlock_trade_time' => $row['unlock_trade_time'],
             'advanced_count' => $row['advanced_count'],
             'offer_reward_state' => 0,
-            'tags' => $row['tags']?:'',
+            'tags' => isset($row['tags'])?$row['tags']:'',
 
             //暂留（以下弃用字段）
             'current_pvp_get_ceg' => $todayGetGold / 100,