diff --git a/block/Makefile b/block/Makefile
index 2528c59..a827f98 100644
--- a/block/Makefile
+++ b/block/Makefile
@@ -24,3 +24,4 @@
 obj-$(CONFIG_BLK_DEV_INTEGRITY) += bio-integrity.o blk-integrity.o t10-pi.o
 obj-$(CONFIG_BLK_MQ_PCI)	+= blk-mq-pci.o
 obj-$(CONFIG_BLK_DEV_ZONED)	+= blk-zoned.o
+obj-$(CONFIG_BLK_WBT)		+= blk-wbt.o