diff --git a/cont.c b/cont.c
index 49629efd90..72331fcc93 100644
--- a/cont.c
+++ b/cont.c
@@ -1578,7 +1578,7 @@ cont_restore_1(rb_context_t *cont)
     cont_restore_thread(cont);
 
     /* restore machine stack */
-#ifdef _M_AMD64
+#if defined(_M_AMD64) && !defined(__MINGW64__)
     {
         /* workaround for x64 SEH */
         jmp_buf buf;