diff --git a/sys/modules/i2c/iichid/Makefile b/sys/modules/i2c/iichid/Makefile
index 36cdb3127088..a6affe1d76fc 100644
--- a/sys/modules/i2c/iichid/Makefile
+++ b/sys/modules/i2c/iichid/Makefile
@@ -3,6 +3,7 @@
 .PATH:		${SRCTOP}/sys/dev/iicbus
 KMOD		= iichid
 SRCS		= iichid.c
-SRCS		+= acpi_if.h bus_if.h device_if.h hid_if.h iicbus_if.h opt_hid.h
+SRCS		+= acpi_if.h bus_if.h device_if.h hid_if.h iicbus_if.h
+SRCS		+= opt_acpi.h opt_hid.h
 
 .include <bsd.kmod.mk>