diff --git a/fs/bcachefs/reflink.c b/fs/bcachefs/reflink.c
index c47c66c2b394..ff7864731a07 100644
--- a/fs/bcachefs/reflink.c
+++ b/fs/bcachefs/reflink.c
@@ -185,8 +185,7 @@ static s64 gc_trigger_reflink_p_segment(struct btree_trans *trans,
 		} else {
 			bkey_error_init(update);
 			update->k.p		= p.k->p;
-			update->k.p.offset	= next_idx;
-			update->k.size		= next_idx - *idx;
+			update->k.size		= p.k->size;
 			set_bkey_val_u64s(&update->k, 0);
 		}