diff --git a/sys/modules/wi/Makefile b/sys/modules/wi/Makefile
index 2635d67e5a4..62287170823 100644
--- a/sys/modules/wi/Makefile
+++ b/sys/modules/wi/Makefile
@@ -3,6 +3,9 @@
 .PATH: ${.CURDIR}/../../dev/wi
 
 KMOD=	if_wi
-SRCS=	if_wi.c card_if.h device_if.h bus_if.h pci_if.h
+SRCS=	if_wi.c card_if.h device_if.h bus_if.h pci_if.h pci.h
+
+pci.h:
+	echo "#define NPCI 1" > $@
 
 .include <bsd.kmod.mk>