diff --git a/setup.c b/setup.c
index 0e2e3c8c3c49ccf2aaac6c9569e8260eafbbd491..cc44a724bf3220de1cb8a3ef818e581905d7265c 100644
--- a/setup.c
+++ b/setup.c
@@ -173,5 +173,6 @@ int check_repository_format(void)
 const char *setup_git_directory(void)
 {
 	const char *retval = setup_git_directory_1();
+	check_repository_format();
 	return retval;
 }