diff --git a/common/device-scan.h b/common/device-scan.h
index f7278045..1459ee36 100644
--- a/common/device-scan.h
+++ b/common/device-scan.h
@@ -27,8 +27,6 @@ enum {
 	BTRFS_SCAN_LBLKID	= (1ULL << 1)
 };
 
-#define BTRFS_UPDATE_KERNEL	1
-
 enum {
 	BTRFS_ARG_UNKNOWN,
 	BTRFS_ARG_MNTPOINT,