diff --git a/GZCTF/Services/K8sService.cs b/GZCTF/Services/K8sService.cs
index 569d1c5d4..6a697b040 100644
--- a/GZCTF/Services/K8sService.cs
+++ b/GZCTF/Services/K8sService.cs
@@ -261,12 +261,12 @@ private void InitK8s(bool withAuth, RegistryConfig? registry)
         {
             var auth = Codec.Base64.Encode($"{registry.UserName}:{registry.Password}");
             var dockerjson = Codec.Base64.EncodeToBytes(
-                $"{{\"auths\":" +
+                "{{\\\"auths\\\":" +
                     $"{{\"{registry.ServerAddress}\":" +
                         $"{{\"auth\":\"{auth}\"," +
                         $"\"username\":\"{registry.UserName}\"," +
                         $"\"password\":\"{registry.Password}\"" +
-                $"}}}}}}");
+                "}}}}}}");
             var dockerjsonBytes = Codec.Base64.EncodeToBytes(dockerjson);
             var secret = new V1Secret()
             {