diff --git a/server/internal/api/router.go b/server/internal/api/router.go
index 10e03ce..79fa301 100644
--- a/server/internal/api/router.go
+++ b/server/internal/api/router.go
@@ -21,12 +21,14 @@ func NewRouter(metaDB *sql.DB, marketingDB *sql.DB, marketingAuthDB *sql.DB, res
 	// exports 路由处理（特殊处理下载接口）
 	mux.HandleFunc("/api/exports/", func(w http.ResponseWriter, r *http.Request) {
 		path := r.URL.Path
-		// 如果是下载接口，不需要认证
 		if strings.HasSuffix(path, "/download") {
-			exportsDownloadHandler(metaDB, marketingDB, ymtDB).ServeHTTP(w, r)
+			// 下载接口，不需要认证
+			handler := exportsDownloadHandler(metaDB, marketingDB, ymtDB)
+			handler.ServeHTTP(w, r)
 		} else {
 			// 其他 exports 路由需要认证
-			withAccess(withTrace(authMiddleware(ExportsHandler(metaDB, marketingDB, ymtDB)))).ServeHTTP(w, r)
+			handler := withAccess(withTrace(authMiddleware(ExportsHandler(metaDB, marketingDB, ymtDB))))
+			handler.ServeHTTP(w, r)
 		}
 	})