diff --git a/block/blk-tag.c b/block/blk-tag.c
index a8c37d4bbb32..4780a46ce234 100644
--- a/block/blk-tag.c
+++ b/block/blk-tag.c
@@ -6,6 +6,8 @@
 #include <linux/bio.h>
 #include <linux/blkdev.h>
 
+#include "blk.h"
+
 /**
  * blk_queue_find_tag - find a request by its tag and queue
  * @q:	 The request queue for the device