diff --git a/.local/bin/setup/setupbacklight b/.local/bin/setup/setupbacklight
index 97d227a..df2fc14 100644
--- a/.local/bin/setup/setupbacklight
+++ b/.local/bin/setup/setupbacklight
@@ -1,6 +1,8 @@
 #! /bin/bash
 
-doas tee /etc/udev/rules/backlight.rules <<HRD
-ACTION=="add", SUBSYSTEM=="backlight", KERNEL=="acpi_video0", GROUP="video", MODE="0664"
+doas tee /etc/udev/rules/90-backlight.rules <<HRD
+SUBSYSTEM=="backlight", ACTION=="add" \
+    RUN+="/bin/chgrp video /sys/class/backlight/%k/brightness", \
+    RUN+="/bin/chmod g+w /sys/class/backlight/%k/brightness"
 HRD