diff --git a/powerwall.sh b/powerwall.sh
index 6e5e9b5c..dc097bcd 100755
--- a/powerwall.sh
+++ b/powerwall.sh
@@ -2311,11 +2311,7 @@ fi
 		checktemp) CHECKTEMP ${2} ${3} ${4} ${5} ${6} ${7} ${8} ${9} ${10};;
 		checkpower) CHECKPOWER ${2} ${3} ${4} ${5} ${6} ${7} ${8} ${9} ${10};;
 		check)
-			if [ "${3}" == "" ] || ([ "${2}" != "power" ] && [ "${2}" != "temp" ]); then
-				checkrun="-help"
-			else
-				checkrun=${2}
-			fi
+			([ "${2}" == "" ] || ([ "${2}" != "power" ] && [ "${2}" != "temp" ])) && checkrun="-help" || checkrun=${2}
 			case ${checkrun} in
 				power) CHECKPOWER ${3} ${4} ${5} ${6} ${7} ${8} ${9} ${10};;
 				temp) CHECKTEMP ${3} ${4} ${5} ${6} ${7} ${8} ${9} ${10};;