diff --git a/cocos/base/allocator/CCAllocatorStrategyGlobalSmallBlock.h b/cocos/base/allocator/CCAllocatorStrategyGlobalSmallBlock.h
index 4be9cdfc48..9c43bc25c8 100644
--- a/cocos/base/allocator/CCAllocatorStrategyGlobalSmallBlock.h
+++ b/cocos/base/allocator/CCAllocatorStrategyGlobalSmallBlock.h
@@ -164,7 +164,7 @@ public:
             } \
             break;
             
-        void* address;
+        void* address = nullptr;
         
         switch (adjusted_size)
         {