diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile
index 53a7bc0..77c835a 100644
--- a/drivers/usb/Makefile
+++ b/drivers/usb/Makefile
@@ -46,6 +46,7 @@
 obj-$(CONFIG_USB_SERIAL)	+= serial/
 
 obj-$(CONFIG_USB)		+= misc/
+obj-$(CONFIG_USB)		+= phy/
 obj-$(CONFIG_EARLY_PRINTK_DBGP)	+= early/
 
 obj-$(CONFIG_USB_ATM)		+= atm/