diff --git a/block/blk.h b/block/blk.h
index a6e9ce376780..4089aeffca4b 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -2,7 +2,6 @@
 #ifndef BLK_INTERNAL_H
 #define BLK_INTERNAL_H
 
-#include <linux/idr.h>
 #include <linux/part_stat.h>
 #include <linux/blk-crypto.h>
 #include <linux/memblock.h>	/* for max_pfn/max_low_pfn */