diff --git a/src/os_win32.h b/src/os_win32.h
index 527d8c7..41a44bf 100644
--- a/src/os_win32.h
+++ b/src/os_win32.h
@@ -191,5 +191,5 @@
 #ifdef __BORLANDC__
 # define vim_mkdir(x, y) mkdir(x)
 #else
-# define vim_mkdir(x, y) _mkdir(x)
+# define vim_mkdir(x, y) mch_mkdir(x)
 #endif