1 files changed, 1 insertions, 1 deletions

diff --git a/diff.h b/diff.h
index 150f1c5a1c..6aeeda035e 100644
--- a/diff.h
+++ b/diff.h
@@ -236,7 +236,7 @@ struct combine_diff_path {
 extern void show_combined_diff(struct combine_diff_path *elem, int num_parent,
 			      int dense, struct rev_info *);
 
-extern void diff_tree_combined(const unsigned char *sha1, const struct oid_array *parents, int dense, struct rev_info *rev);
+extern void diff_tree_combined(const struct object_id *oid, const struct oid_array *parents, int dense, struct rev_info *rev);
 
 extern void diff_tree_combined_merge(const struct commit *commit, int dense, struct rev_info *rev);