diff --git a/offsite-power-check.sh b/offsite-power-check.sh
index 104dfe7f..0f187089 100755
--- a/offsite-power-check.sh
+++ b/offsite-power-check.sh
@@ -93,7 +93,7 @@ BATT RUNTIME: ${OFFSITE_BATT_RUNTIME}'Mins" 1
 }
 
 PWO_STOP(){
-	ps | grep "offsite-power-check.sh" | grep -v "grep" | awk '{print $1}' | xargs kill
+	ps -U root | grep "offsite-power-check.sh" | grep -v "grep" | awk '{print $1}' | xargs kill
 }