diff --git a/powerwall.sh b/powerwall.sh
index 36ba68f3..2eb05d81 100755
--- a/powerwall.sh
+++ b/powerwall.sh
@@ -24,7 +24,7 @@ CHECKTEMP(){
 		
 		echo ${TEMP_THRESHOLDS[${1}]} | cut -d',' -f 1 | read temp_warn
 		echo ${TEMP_THRESHOLDS[${1}]} | cut -d',' -f 2 | read temp_crit
-		temp_f=$(($temp_f + 0))
+		temp_f=$(($temp_f))
 		
 		if [ $temp_f -ge ${temp_warn} ] && [ $temp_f -lt ${temp_crit} ]; then
 			echo "WARNING: $temp_f"