diff --git a/block/bio.c b/block/bio.c
index 0fff4eb..24a496f 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1521,7 +1521,6 @@ struct bio *bio_map_kern(struct request_queue *q, void *data, unsigned int len,
 	bio->bi_end_io = bio_map_kern_endio;
 	return bio;
 }
-EXPORT_SYMBOL(bio_map_kern);
 
 static void bio_copy_kern_endio(struct bio *bio)
 {