1 files changed, 4 insertions, 4 deletions

diff --git a/ui-diff.c b/ui-diff.c
index a10ce8a..e33e9fb 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -258,8 +258,8 @@ static void header(const struct object_id *oid1, char *path1, int mode1,
                 htmlf("<br/>deleted file mode %.6o", mode1);
 
         if (!subproject) {
-                abbrev1 = xstrdup(find_unique_abbrev(oid1->hash, DEFAULT_ABBREV));
-                abbrev2 = xstrdup(find_unique_abbrev(oid2->hash, DEFAULT_ABBREV));
+                abbrev1 = xstrdup(find_unique_abbrev(oid1, DEFAULT_ABBREV));
+                abbrev2 = xstrdup(find_unique_abbrev(oid2, DEFAULT_ABBREV));
                 htmlf("<br/>index %s..%s", abbrev1, abbrev2);
                 free(abbrev1);
                 free(abbrev2);
@@ -413,7 +413,7 @@ void cgit_print_diff(const char *new_rev, const char *old_rev,
                         "Bad commit: %s", oid_to_hex(new_rev_oid));
                 return;
         }
-        new_tree_oid = &commit->tree->object.oid;
+        new_tree_oid = &commit->maybe_tree->object.oid;
 
         if (old_rev) {
                 if (get_oid(old_rev, old_rev_oid)) {
@@ -434,7 +434,7 @@ void cgit_print_diff(const char *new_rev, const char *old_rev,
                                 "Bad commit: %s", oid_to_hex(old_rev_oid));
                         return;
                 }
-                old_tree_oid = &commit2->tree->object.oid;
+                old_tree_oid = &commit2->maybe_tree->object.oid;
         } else {
                 old_tree_oid = NULL;
         }