diff --git a/offsite-power-check.sh b/offsite-power-check.sh
index 0a96a1bc..1cff9639 100755
--- a/offsite-power-check.sh
+++ b/offsite-power-check.sh
@@ -94,7 +94,7 @@ STOP(){
 
 
 
-case ${action} in
+case ${1} in
 	start) START;;
 	stop) STOP;;
 esac