diff --git a/powerwall.sh b/powerwall.sh
index 7ab8c2ac..ccadbdee 100755
--- a/powerwall.sh
+++ b/powerwall.sh
@@ -196,7 +196,7 @@ CHECKTEMP_SERVICE(){
 						temp_crit=$(echo ${SENSOR} | cut -d'p' -f2 | awk '/ / {print $4}' | sed -e 's/C//g');	temp_crit=${temp_crit/ /}
 						temp_crit_sys=$(echo ${SENSOR} | cut -d'p' -f2 | awk '/ / {print $4}' | sed -e 's/C//g');	temp_crit=${temp_crit/ /}
 						vSENSOR=$(echo ${SENSOR} | cut -d'T' -f1 | xargs)
-						SENSOR="${SENSORa}-${vSENSOR// /.}"
+						SENSOR="${SENSORa}-${vSENSOR// /_}"
 						
 						echo "HERE: ${SENSOR} - ${temp_c} - ${temp_warn} - ${temp_crit}"