diff --git a/fs/bcachefs/buckets_waiting_for_journal.c b/fs/bcachefs/buckets_waiting_for_journal.c
index 81ab685cdef9..ec1b636ef78d 100644
--- a/fs/bcachefs/buckets_waiting_for_journal.c
+++ b/fs/bcachefs/buckets_waiting_for_journal.c
@@ -133,7 +133,7 @@ int bch2_set_bucket_needs_journal_commit(struct buckets_waiting_for_journal *b,
 	b->t = n;
 	kvfree(t);
 
-	pr_debug("took %zu rehashes, table at %zu/%zu elements",
+	pr_debug("took %zu rehashes, table at %zu/%lu elements",
 		 nr_rehashes, nr_elements, 1UL << b->t->bits);
 out:
 	mutex_unlock(&b->lock);