diff --git a/src/ulib/utils/defer.h b/src/ulib/utils/defer.h
index 5e280b9..3771e5a 100644
--- a/src/ulib/utils/defer.h
+++ b/src/ulib/utils/defer.h
@@ -18,20 +18,17 @@ public:
 
     Defer(DeferFunc &&defer_func) { Add(std::move(defer_func)); }
 
-    Defer(Defer &&other) noexcept : defer_funcs_(std::move(other.defer_funcs_))
-    {}
+    Defer(Defer &&other) noexcept : defer_funcs_(std::move(other.defer_funcs_)) {}
 
     ~Defer()
     {
-        std::for_each(defer_funcs_.rbegin(), defer_funcs_.rend(),
-                      [](const DeferFunc &defer_func) { defer_func(); });
+        std::for_each(defer_funcs_.rbegin(), defer_funcs_.rend(), [](const DeferFunc &defer_func) { defer_func(); });
     }
 
     template<typename F, typename... Args>
     void Add(F &&func, Args &&...args)
     {
-        defer_funcs_.push_back(
-            std::bind(std::forward<F>(func), std::forward<Args>(args)...));
+        defer_funcs_.push_back(std::bind(std::forward<F>(func), std::forward<Args>(args)...));
     }
 
     void Clear() { defer_funcs_.clear(); }
@@ -40,12 +37,12 @@ private:
     std::vector<DeferFunc> defer_funcs_;
 };
 
-#define _ULIB_DEFER_CONCAT(a, b) a##b
-#define ULIB_DEFER_CONCAT(a, b) _ULIB_DEFER_CONCAT(a, b)
+// #define _ULIB_DEFER_CONCAT(a, b) a##b
+// #define ULIB_DEFER_CONCAT(a, b) _ULIB_DEFER_CONCAT(a, b)
 
-#define defer(x)                                                               \
-    ::ulib::Defer ULIB_DEFER_CONCAT(__ulib_defer__, __LINE__) =                \
-        ::ulib::Defer(x);
+// #define defer(x)                                                               \
+//     ::ulib::Defer ULIB_DEFER_CONCAT(__ulib_defer__, __LINE__) =                \
+//         ::ulib::Defer(x);
 
 }// namespace ulib
 #endif// ULIB_SRC_ULIB_UTILS_DEFER_H_