diff --git a/cron.sh b/cron.sh
index ecade74..a6228d6 100644
--- a/cron.sh
+++ b/cron.sh
@@ -3,13 +3,14 @@
 # explicitly without "-e" for it should not exit immediately when failed but write a mail
 set -uo pipefail # See http://redsymbol.net/articles/unofficial-bash-strict-mode/
 # Execute via crontab by hduser@weywot1:
-# 00 1 * * * [removed]  git/lobid-gnd ; bash -x cron.sh >> logs/cron.sh.log 2>&1"
+# 40 * * * * [removed]  git/lobid-gnd ; bash -x cron.sh >> logs/cron.sh.log 2>&1"
 # 50 05 * * * [removed] git/lobid-gnd ; bash -x cron.sh 1day >> logs/cron.sh.log 2>&1"
 
-
 IFS=$'\n\t'
 RECIPIENT=lobid-admin
 START_UPDATE=$(tail -n1 GND-lastSuccessfulUpdate.txt)
+TEST_INDEX=gnd-test
+INDEX=gnd
 unset http_proxy
 
 if [ -n "${1-}" ] && [ "$1" = "1day" ]; then
@@ -19,13 +20,13 @@ fi
 sbt -mem 4000 "runMain apps.ConvertUpdates ${START_UPDATE}"
 
 if [ -s GND-updates.jsonl ]; then
-  sbt -Dindex.prod.name=gnd-test "runMain apps.Index updates"
-  bash ./checkCompactedProperties.sh gnd-test
+  sbt -Dindex.prod.name=$TEST_INDEX "runMain apps.Index updates"
+  bash ./checkCompactedProperties.sh $TEST_INDEX
 
   # if check ok, index to productive instance:
   if [ $? -eq 0 ]; then
-    sbt -Dindex.prod.name=gnd "runMain apps.Index updates"
-    bash ./checkCompactedProperties.sh gnd
+    sbt -Dindex.prod.name=$INDEX "runMain apps.Index updates"
+    bash ./checkCompactedProperties.sh $INDEX
   fi
 fi