diff --git a/wephone.rc b/wephone.rc
index 47cc382..469940e 100644
--- a/wephone.rc
+++ b/wephone.rc
@@ -2,7 +2,7 @@ on boot
         exec - root -- /system/bin/wephone.sh
 
 on property:debug.tracing.battery_stats.screen=1
-        exec - root -- write /sys/class/leds/keyboard_light/brightness 255
+        exec - root -- echo "255" > /sys/class/leds/keyboard_light/brightness
 
 on property:debug.tracing.battery_stats.screen=0
-        exec - root -- write /sys/class/leds/keyboard_light/brightness 0
\ No newline at end of file
+        exec - root -- echo "0" > /sys/class/leds/keyboard_light/brightness
\ No newline at end of file