diff --git a/test-chmtime.c b/test-chmtime.c
index b6dc548a2a..8a1e6b8479 100644
--- a/test-chmtime.c
+++ b/test-chmtime.c
@@ -22,7 +22,7 @@ int git_utime (const char *file_name, const struct utimbuf *times)
 
 	time_t_to_filetime(times->modtime, &mft);
 	time_t_to_filetime(times->actime, &aft);
-	if (!SetFileTime(_get_osfhandle(fh), NULL, &aft, &mft)) {
+	if (!SetFileTime((HANDLE)_get_osfhandle(fh), NULL, &aft, &mft)) {
 		errno = EINVAL;
 		rc = -1;
 	} else