diff --git a/path-walk.c b/path-walk.c
index 2aa3e7d8a4..6e426af433 100644
--- a/path-walk.c
+++ b/path-walk.c
@@ -174,7 +174,7 @@ static int add_tree_entries(struct path_walk_context *ctx,
 
 		if (!o) {
 			error(_("failed to find object %s"),
-			      oid_to_hex(&o->oid));
+			      oid_to_hex(&entry.oid));
 			return -1;
 		}