diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h
index 385e28a843d1aa8a4fe7cbe540f6c4271bb08463..a73488eec8a47b0e66028243163b302165ecc51a 100644
--- a/block/bfq-iosched.h
+++ b/block/bfq-iosched.h
@@ -955,8 +955,6 @@ struct bfq_group {
 };
 #endif
 
-struct bfq_queue *bfq_entity_to_bfqq(struct bfq_entity *entity);
-
 /* --------------- main algorithm interface ----------------- */
 
 #define BFQ_SERVICE_TREE_INIT	((struct bfq_service_tree)		\