diff --git a/sys/modules/mii/Makefile b/sys/modules/mii/Makefile
index 407f3c3a6810..9d277b5f0e0e 100644
--- a/sys/modules/mii/Makefile
+++ b/sys/modules/mii/Makefile
@@ -2,7 +2,7 @@
 
 .PATH:	${.CURDIR}/../../dev/mii
 KMOD	= miibus
-SRCS	= mii.c mii_physubr.c ukphy.c ukphy_subr.c bus_if.h
+SRCS	= mii.c mii_physubr.c ukphy.c ukphy_subr.c bus_if.h pci_if.h
 SRCS	+= miibus_if.h device_if.h miibus_if.c exphy.c nsphy.c
 SRCS	+= mlphy.c tlphy.c rlphy.c amphy.c dcphy.c pnphy.c
 CFLAGS	+= ${DEBUG_FLAGS}