diff --git a/check-temp.sh b/check-temp.sh
index 6a5babf..adcb955 100755
--- a/check-temp.sh
+++ b/check-temp.sh
@@ -3,7 +3,7 @@ IPMIUSER=`cat /user.txt`
 IPMIPW=`cat /pw.txt`
 FANSPEED=`cat /fanspeed.txt`
 
-MAXTEMP=32
+MAXTEMP=${MAXTEMP:-32}
 
 TEMP=$(ipmitool -I lanplus -H $IPMIHOST -U $IPMIUSER -P $IPMIPW sdr type temperature |grep Inlet |grep degrees |grep -Po '\d{2}' | tail -1)