diff --git a/sys/modules/i2c/Makefile b/sys/modules/i2c/Makefile
index 8e9bdf982cb6..91140ca49566 100644
--- a/sys/modules/i2c/Makefile
+++ b/sys/modules/i2c/Makefile
@@ -1,6 +1,16 @@
 # $FreeBSD$
 
-SUBDIR =
-SUBDIR += controllers if_ic smbus iicbus iicbb iicsmb iic cyapa smb isl jedec_ts
+SUBDIR = \
+	controllers \
+	cyapa \
+	if_ic \
+	iic \
+	iicbb \
+	iicbus \
+	iicsmb \
+	isl \
+	jedec_ts \
+	smb \
+	smbus \
 
 .include <bsd.subdir.mk>