diff --git a/dlls/msvcirt/msvcirt.c b/dlls/msvcirt/msvcirt.c
index 360d34653f1..f76eaf6d7ac 100644
--- a/dlls/msvcirt/msvcirt.c
+++ b/dlls/msvcirt/msvcirt.c
@@ -4459,7 +4459,7 @@ void __cdecl ios_sync_with_stdio(void)
 }
 
 
-#if defined(__i386__) && !defined(__MINGW32__)
+#ifdef __ASM_USE_THISCALL_WRAPPER
 
 #define DEFINE_VTBL_WRAPPER(off)            \
     __ASM_GLOBAL_FUNC(vtbl_wrapper_ ## off, \