diff --git a/compat/mingw.c b/compat/mingw.c
index 286b22bb25..d61b96fd84 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -2844,6 +2844,7 @@ int wmain(int argc, const wchar_t **wargv)
 #endif
 
 	maybe_redirect_std_handles();
+	fsync_object_files = 1;
 
 	/* determine size of argv and environ conversion buffer */
 	maxlen = wcslen(wargv[0]);