diff --git a/powerwall.sh b/powerwall.sh
index 55f3ed0e..d671c536 100755
--- a/powerwall.sh
+++ b/powerwall.sh
@@ -46,7 +46,7 @@ CHECKTEMP_SERVICE(){
 			echo $mqtt_message | cut -d'T' -f 2 | cut -d"\"" -f 3 | read temp_d
 			echo $mqtt_message | cut -d'T' -f 3 | cut -d"\"" -f 1 | read temp_t
 			if [ "$temp_c" != "null" ] && [ "$temp_c" != "" ]; then
-				temp_f=`echo "scale=2; $temp_c*1.8 + 33" | bc`
+				temp_f=`echo "scale=2; $temp_c*1.8 + 32" | bc`
 				
 				#echo "$temp_c -> $temp_f"