diff --git a/inc/temp.inc.sh b/inc/temp.inc.sh
index eade09cc..68856a55 100644
--- a/inc/temp.inc.sh
+++ b/inc/temp.inc.sh
@@ -891,9 +891,9 @@ CHECKTEMP_SERVICE(){
 			fi
 		done
 		end=`date +%s`; runtime=$((end-start))
-		# echo -e "script runtime: ${runtime}s"; [ ${runtime} -lt ${runEvery} ] && echo "Sleeping for $(expr ${runEvery} - ${runtime})s"
-		echo "${log_start}~${runtime}~temp" >> ${PW_LOGFOLDER}/service.scantimes
-		[ ${runtime} -lt ${runEvery} ] && sleep $(expr ${runEvery} - ${runtime})s
+		# echo -e "script runtime: ${runtime}s"; [ ${runtime} -lt ${runEvery} ] && echo "Sleeping for $((runEvery-runtime))s"
+		echo "${log_start}~${runtime}~temp" >> ${PW_LOGFOLDER}/$((runEvery-runtime))
+		[ ${runtime} -lt ${runEvery} ] && sleep $((runEvery-runtime))s
 	done # &
 }
 CHECKTEMP_SERVICE_RUNSENSOR(){