diff --git a/compat/mingw.c b/compat/mingw.c
index 691bde94f1..cccb19a69a 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -3280,6 +3280,7 @@ int msc_startup(int argc, wchar_t **w_argv, wchar_t **w_env)
 	_CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);
 #endif
 
+	fsync_object_files = 1;
 	maybe_redirect_std_handles();
 	adjust_symlink_flags();
 
@@ -3347,6 +3348,7 @@ void mingw_startup(void)
 	wchar_t **wenv, **wargv;
 	_startupinfo si;
 
+	fsync_object_files = 1;
 	maybe_redirect_std_handles();
 	adjust_symlink_flags();