diff --git a/scripts/core/sxmo_rtcwake.sh b/scripts/core/sxmo_rtcwake.sh
index df7eebd..7b89524 100644
--- a/scripts/core/sxmo_rtcwake.sh
+++ b/scripts/core/sxmo_rtcwake.sh
@@ -7,7 +7,7 @@ REDLED_PATH="/sys/class/leds/red:indicator/brightness"
 BLUELED_PATH="/sys/class/leds/blue:indicator/brightness"
 
 finish() {
-	kill $BLINKPID
+	kill "$BLINKPID"
 
 	sxmo_screenlock.sh updateLed