diff --git a/modules/prechroot/20-pkg.sh b/modules/prechroot/20-pkg.sh
index e91dff6..56b8cf8 100644
--- a/modules/prechroot/20-pkg.sh
+++ b/modules/prechroot/20-pkg.sh
@@ -10,7 +10,7 @@ esac
 [ -s modules/chroot/flatpak.txt ] \
     && printf '%s\n' flatpak xdg-desktop-portal-gtk >> pkglist.txt
 
-[ -f /sys/class/power_supply/BAT0 ] && echo tlp >> pkglist.txt
+[ -d /sys/class/power_supply/BAT0 ] && echo tlp >> pkglist.txt
 
 pacstrap -C rootfs/etc/pacman.conf -K /mnt \
     base linux{,-lts,-firmware} "$shell" - < pkglist.txt