diff --git a/extend/base/admin/service/curd/BuildCurdServiceBase.php b/extend/base/admin/service/curd/BuildCurdServiceBase.php
index ecfcf4a..3e55769 100644
--- a/extend/base/admin/service/curd/BuildCurdServiceBase.php
+++ b/extend/base/admin/service/curd/BuildCurdServiceBase.php
@@ -1695,7 +1695,7 @@ class BuildCurdServiceBase
     public function replaceTemplate($string, $array = [])
     {
         foreach ($array as $key => $val) {
-            $string = str_replace('{{' . $key . '}}', $val, $string);
+            $string = str_replace('{{' . $key . '}}', $val ?? '', $string);
         }
 
         return $string;