1 files changed, 1 insertions, 1 deletions
diff --git a/tree.h b/tree.h
index d24786cba2..2b2c8dbbe9 100644
--- a/tree.h
+++ b/tree.h
@@ -12,7 +12,7 @@ struct tree {
 	unsigned long size;
 };
 
-struct tree *lookup_tree(const unsigned char *sha1);
+struct tree *lookup_tree(const struct object_id *oid);
 
 int parse_tree_buffer(struct tree *item, void *buffer, unsigned long size);