1 files changed, 2 insertions, 2 deletions
diff --git a/merge.c b/merge.c
index 04ee5fc911..1d441ad942 100644
--- a/merge.c
+++ b/merge.c
@@ -44,8 +44,8 @@ int try_merge_command(const char *strategy, size_t xopts_nr,
 	return ret;
 }
 
-int checkout_fast_forward(const unsigned char *head,
-			  const unsigned char *remote,
+int checkout_fast_forward(const struct object_id *head,
+			  const struct object_id *remote,
 			  int overwrite_ignore)
 {
 	struct tree *trees[MAX_UNPACK_TREES];