diff --git a/include/linux/bio.h b/include/linux/bio.h
index 0801ef9d37dd..efa15cffca72 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -435,6 +435,7 @@ extern int bioset_init_from_src(struct bio_set *bs, struct bio_set *src);
 extern struct bio *bio_alloc_bioset(gfp_t, unsigned int, struct bio_set *);
 extern void bio_put(struct bio *);
 
+extern void bio_clone_crypt_key(struct bio *dst, const struct bio *src);
 extern void __bio_clone_fast(struct bio *, struct bio *);
 extern struct bio *bio_clone_fast(struct bio *, gfp_t, struct bio_set *);