diff --git a/patch-ids.c b/patch-ids.c
index db31fa6..bafaae2 100644
--- a/patch-ids.c
+++ b/patch-ids.c
@@ -43,6 +43,7 @@
 			       struct commit *commit,
 			       struct patch_ids *ids)
 {
+	patch->commit = commit;
 	if (commit_patch_id(commit, &ids->diffopts, patch->patch_id))
 		return -1;