diff --git a/bin/polybar b/bin/polybar
index 2dcaf7a..99ce57a 100755
--- a/bin/polybar
+++ b/bin/polybar
@@ -2,6 +2,7 @@
 
 export DPI=$(xrdb -query | sed -nE 's/^Xft\.dpi:\s*//p')
 export HEIGHT=$((20 * DPI / 96))
+export BACKLIGHT=$(cd /sys/class/backlight ; ls | head -1)
 
 polybar --version
 
diff --git a/dotfiles/polybar.conf b/dotfiles/polybar.conf
index 149ed64..e8228ae 100644
--- a/dotfiles/polybar.conf
+++ b/dotfiles/polybar.conf
@@ -82,7 +82,7 @@ include-file = $XDG_RUNTIME_DIR/i3/polybar-filesystems.conf
 
 [module/brightness]
 type = internal/backlight
-card = intel_backlight
+card = ${env:BACKLIGHT:intel_backlight}
 format = <ramp> <label>
 label = %percentage: 2%%
 ramp-0 = 