diff --git a/include/rpcndr.h b/include/rpcndr.h
index 498aa4ddd40..2d836726a15 100644
--- a/include/rpcndr.h
+++ b/include/rpcndr.h
@@ -82,8 +82,8 @@ typedef unsigned char boolean;
 #define midl_user_free MIDL_user_free
 #define midl_user_allocate MIDL_user_allocate
 
-void * __RPC_USER MIDL_user_allocate(SIZE_T);
 void __RPC_USER MIDL_user_free(void *);
+void * __RPC_USER MIDL_user_allocate(SIZE_T) __WINE_ALLOC_SIZE(1) __WINE_DEALLOC(MIDL_user_free) __WINE_MALLOC;
 
 #define NdrFcShort(s) (unsigned char)(s & 0xff), (unsigned char)(s >> 8)
 #define NdrFcLong(s)  (unsigned char)(s & 0xff), (unsigned char)((s & 0x0000ff00) >> 8), \