diff --git a/sys/modules/felix/Makefile b/sys/modules/felix/Makefile
index cfe36a58c3d..47747ffaa11 100644
--- a/sys/modules/felix/Makefile
+++ b/sys/modules/felix/Makefile
@@ -29,6 +29,6 @@
 .PATH:	${SRCTOP}/sys/dev/etherswitch/felix
 
 KMOD	= felix
-SRCS	= felix.c
+SRCS	= felix.c etherswitch_if.c etherswitch_if.h
 
 .include <bsd.kmod.mk>