diff --git a/scripts/on_ac_power b/scripts/on_ac_power
index 3655b839..5dd516f2 100755
--- a/scripts/on_ac_power
+++ b/scripts/on_ac_power
@@ -3,14 +3,14 @@
 # Copyright (c) 2007-2009 Roy Marples <roy@marples.name>
 
 # Exit 0 if on AC power, 1 if not and 255 if we don't know how to work it out
-if [ -f /proc/acpi/ac_adapter/AC*/state ]; then
-	cat /proc/acpi/ac_adapter/AC*/state | while read line; do
+if [ -f /proc/acpi/ac_adapter/*/state ]; then
+	cat /proc/acpi/ac_adapter/*/state | while read line; do
 		case "$line" in
 		"state:"*"off-line") exit 128;;
 		esac
 	done
-elif [ -f /sys/class/power_supply/AC*/online ]; then
-	cat /sys/class/power_supply/AC*/online | while read line; do
+elif [ -f /sys/class/power_supply/*/online ]; then
+	cat /sys/class/power_supply/*/online | while read line; do
 		[ "${line}" = 0 ] && exit 128
 	done
 elif [ -f /proc/pmu/info ]; then