diff --git a/packaging/linux-common/udev/90-pi-backlight.rules b/packaging/linux-common/udev/90-pi-backlight.rules
index d95e35be..5d34b4fc 100644
--- a/packaging/linux-common/udev/90-pi-backlight.rules
+++ b/packaging/linux-common/udev/90-pi-backlight.rules
@@ -1,2 +1,4 @@
 ACTION=="add", SUBSYSTEM=="backlight", RUN+="/bin/chgrp nymea /sys/class/backlight/%k/bl_power"
 ACTION=="add", SUBSYSTEM=="backlight", RUN+="/bin/chmod g+w /sys/class/backlight/%k/bl_power"
+ACTION=="add", SUBSYSTEM=="backlight", RUN+="/bin/chgrp nymea /sys/class/backlight/%k/brightness"
+ACTION=="add", SUBSYSTEM=="backlight", RUN+="/bin/chmod g+w /sys/class/backlight/%k/brightness"