diff --git a/sys/modules/acpi/Makefile b/sys/modules/acpi/Makefile
--- a/sys/modules/acpi/Makefile
+++ b/sys/modules/acpi/Makefile
@@ -1,5 +1,17 @@
-SUBDIR=		acpi_asus acpi_asus_wmi acpi_dock acpi_fujitsu acpi_hp	\
-		acpi_ged acpi_ibm acpi_panasonic acpi_sbl_wmi acpi_sony	\
-		acpi_toshiba acpi_video acpi_wmi aibs
+SUBDIR=	\
+	acpi_asus \
+	acpi_asus_wmi \
+	acpi_dock \
+	acpi_fujitsu \
+	acpi_ged \
+	acpi_hp \
+	acpi_ibm \
+	acpi_panasonic \
+	acpi_sbl_wmi \
+	acpi_sony \
+	acpi_toshiba \
+	acpi_video \
+	acpi_wmi \
+	aibs
 
 .include <bsd.subdir.mk>