diff --git a/sys/modules/i2c/Makefile b/sys/modules/i2c/Makefile
index 91140ca49566..901373728a94 100644
--- a/sys/modules/i2c/Makefile
+++ b/sys/modules/i2c/Makefile
@@ -3,6 +3,8 @@
 SUBDIR = \
 	controllers \
 	cyapa \
+	ds1307 \
+	ds3231 \
 	if_ic \
 	iic \
 	iicbb \
@@ -10,6 +12,7 @@ SUBDIR = \
 	iicsmb \
 	isl \
 	jedec_ts \
+	nxprtc \
 	smb \
 	smbus \
 
diff --git a/sys/modules/i2c/ds1307/Makefile b/sys/modules/i2c/ds1307/Makefile
new file mode 100644
index 000000000000..7a9270a7c0bb
--- /dev/null
+++ b/sys/modules/i2c/ds1307/Makefile
@@ -0,0 +1,7 @@
+# $FreeBSD$
+
+.PATH:		${SRCTOP}/sys/dev/iicbus
+KMOD		= ds1307
+SRCS		= ds1307.c bus_if.h clock_if.h device_if.h iicbus_if.h
+
+.include <bsd.kmod.mk>
diff --git a/sys/modules/i2c/ds3231/Makefile b/sys/modules/i2c/ds3231/Makefile
new file mode 100644
index 000000000000..eddddc4ca053
--- /dev/null
+++ b/sys/modules/i2c/ds3231/Makefile
@@ -0,0 +1,7 @@
+# $FreeBSD$
+
+.PATH:		${SRCTOP}/sys/dev/iicbus
+KMOD		= ds3231
+SRCS		= ds3231.c bus_if.h clock_if.h device_if.h iicbus_if.h
+
+.include <bsd.kmod.mk>
diff --git a/sys/modules/i2c/nxprtc/Makefile b/sys/modules/i2c/nxprtc/Makefile
new file mode 100644
index 000000000000..f7965c00e2e8
--- /dev/null
+++ b/sys/modules/i2c/nxprtc/Makefile
@@ -0,0 +1,7 @@
+# $FreeBSD$
+
+.PATH:		${SRCTOP}/sys/dev/iicbus
+KMOD		= nxprtc
+SRCS		= nxprtc.c bus_if.h clock_if.h device_if.h iicbus_if.h
+
+.include <bsd.kmod.mk>