1 files changed, 3 insertions, 2 deletions
diff --git a/pretty.c b/pretty.c
index 34fe891fc0..703fa6ff7b 100644
--- a/pretty.c
+++ b/pretty.c
@@ -1161,10 +1161,11 @@ static size_t format_commit_one(struct strbuf *sb, /* in UTF-8 */
 		strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_RESET));
 		return 1;
 	case 'T':		/* tree hash */
-		strbuf_addstr(sb, oid_to_hex(&commit->tree->object.oid));
+		strbuf_addstr(sb, oid_to_hex(get_commit_tree_oid(commit)));
 		return 1;
 	case 't':		/* abbreviated tree hash */
-		strbuf_add_unique_abbrev(sb, &commit->tree->object.oid,
+		strbuf_add_unique_abbrev(sb,
+					 get_commit_tree_oid(commit),
 					 c->pretty_ctx->abbrev);
 		return 1;
 	case 'P':		/* parent hashes */