diff --git a/src/os/inc/osMemory.h b/src/os/inc/osMemory.h
index 438bb88474fd8917557cbfab8252e1ffb63713e2..0616006650eb2d53cdf7bd70b68c9f60748deac5 100644
--- a/src/os/inc/osMemory.h
+++ b/src/os/inc/osMemory.h
@@ -66,6 +66,7 @@ void   taosTMemset(void *ptr, int c);
     #undef tmalloc
     #undef tcalloc
     #undef trealloc
+    #undef tfree
     #define tmalloc(size) taosMallocMem(size, __FILE__, __LINE__)
     #define tcalloc(num, size) taosCallocMem(num, size, __FILE__, __LINE__)
     #define trealloc(ptr, size) taosReallocMem(ptr, size, __FILE__, __LINE__)