diff --git a/powerwall.sh b/powerwall.sh
index b670d423..8b037e77 100755
--- a/powerwall.sh
+++ b/powerwall.sh
@@ -95,9 +95,9 @@ CHECKTEMPSENSOR(){
 	elif [ "${PW_SENSOR_TYPE[${1}]}" == "esxi" ]; then
 		temp_c=${2}
 		temp_f=$(bc <<< "scale=2; ${temp_c}*1.8+32")
-		temp_warn=$(bc <<< "(${3}*1.8+32) / 1")
+		temp_warn=$(bc <<< "scale=2; (${3}*1.8+32)/1")
 		temp_warn=`echo ${temp_warn} | awk '{print int($1+0.5)}'`
-		temp_crit=$(bc <<< "(${4}*1.8+32) / 1")
+		temp_crit=$(bc <<< "scale=2; (${4}*1.8+32)/1")
 		temp_crit=`echo ${temp_crit} | awk '{print int($1+0.5)}'`
 
 	fi