diff --git a/sys/modules/i2c/ds1307/Makefile b/sys/modules/i2c/ds1307/Makefile
index 7a9270a7c0b..32b80394f45 100644
--- a/sys/modules/i2c/ds1307/Makefile
+++ b/sys/modules/i2c/ds1307/Makefile
@@ -2,6 +2,6 @@
 
 .PATH:		${SRCTOP}/sys/dev/iicbus
 KMOD		= ds1307
-SRCS		= ds1307.c bus_if.h clock_if.h device_if.h iicbus_if.h
+SRCS		= ds1307.c bus_if.h clock_if.h device_if.h iicbus_if.h ofw_bus_if.h
 
 .include <bsd.kmod.mk>
diff --git a/sys/modules/i2c/ds3231/Makefile b/sys/modules/i2c/ds3231/Makefile
index eddddc4ca05..e75c47c21c2 100644
--- a/sys/modules/i2c/ds3231/Makefile
+++ b/sys/modules/i2c/ds3231/Makefile
@@ -2,6 +2,6 @@
 
 .PATH:		${SRCTOP}/sys/dev/iicbus
 KMOD		= ds3231
-SRCS		= ds3231.c bus_if.h clock_if.h device_if.h iicbus_if.h
+SRCS		= ds3231.c bus_if.h clock_if.h device_if.h iicbus_if.h ofw_bus_if.h
 
 .include <bsd.kmod.mk>
diff --git a/sys/modules/i2c/isl12xx/Makefile b/sys/modules/i2c/isl12xx/Makefile
index 0d7d5b03b3f..5f31317fc3b 100644
--- a/sys/modules/i2c/isl12xx/Makefile
+++ b/sys/modules/i2c/isl12xx/Makefile
@@ -2,6 +2,6 @@
 
 .PATH:		${SRCTOP}/sys/dev/iicbus
 KMOD		= isl12xx
-SRCS		= isl12xx.c bus_if.h clock_if.h device_if.h iicbus_if.h
+SRCS		= isl12xx.c bus_if.h clock_if.h device_if.h iicbus_if.h ofw_bus_if.h
 
 .include <bsd.kmod.mk>