diff --git a/builtin/commit.c b/builtin/commit.c
index ae7aaf6..e588bc6 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -510,7 +510,7 @@ static int run_status(FILE *fp, const char *index_file, const char *prefix, int
 	s->nowarn = nowarn;
 	s->is_initial = get_oid(s->reference, &oid) ? 1 : 0;
 	if (!s->is_initial)
-		hashcpy(s->sha1_commit, oid.hash);
+		oidcpy(&s->oid_commit, &oid);
 	s->status_format = status_format;
 	s->ignore_submodule_arg = ignore_submodule_arg;
 
@@ -1406,7 +1406,7 @@ int cmd_status(int argc, const char **argv, const char *prefix)
 
 	s.is_initial = get_oid(s.reference, &oid) ? 1 : 0;
 	if (!s.is_initial)
-		hashcpy(s.sha1_commit, oid.hash);
+		oidcpy(&s.oid_commit, &oid);
 
 	s.ignore_submodule_arg = ignore_submodule_arg;
 	s.status_format = status_format;