diff --git a/IRaCIS.Core.Application/Helper/OSSService.cs b/IRaCIS.Core.Application/Helper/OSSService.cs
index 88d3c86e5..f7208ae28 100644
--- a/IRaCIS.Core.Application/Helper/OSSService.cs
+++ b/IRaCIS.Core.Application/Helper/OSSService.cs
@@ -589,17 +589,17 @@ public class OSSService : IOSSService
                     //client.DeleteObject(sourceBucket, sourceKey);
 
                     // 执行复制
-                    var copyRequest = new Aliyun.OSS.CopyObjectRequest(
+                    var copyRequestAli = new Aliyun.OSS.CopyObjectRequest(
                         sourceBucket, sourceKey,
                         destBucket, destKey);
 
                     // 保持原文件元数据
-                    copyRequest.NewObjectMetadata = new ObjectMetadata
+                    copyRequestAli.NewObjectMetadata = new ObjectMetadata
                     {
                         ContentType = client.GetObjectMetadata(sourceBucket, sourceKey).ContentType
                     };
 
-                    var result = client.CopyObject(copyRequest);
+                    var result = client.CopyObject(copyRequestAli);
 
                     // 删除原文件（仅在复制成功后）
                     client.DeleteObject(sourceBucket, sourceKey);