diff --git a/block/blk-merge.c b/block/blk-merge.c
index d783bdc4559b..f35327f63ef4 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -320,7 +320,7 @@ void __blk_queue_split(struct request_queue *q, struct bio **bio,
 		if (!q->limits.chunk_sectors &&
 		    (*bio)->bi_vcnt == 1 &&
 		    ((*bio)->bi_io_vec[0].bv_len +
-		     (*bio)->bi_io_vec[0].bv_offset) <= PAGE_SIZE) {
+		     (*bio)->bi_io_vec[0].bv_offset) <= SZ_4K) {
 			*nr_segs = 1;
 			break;
 		}