diff --git a/README.md b/README.md
index c4e5ff8..8fc5c09 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ dmarcts report viewer: 2018-03-31
 dmarcts report parser: 2018-03-31
 
 ## Sample docker compose / Environment variables
-The variables should be self-explanatory.
+The variables should be self-explanatory. Make sure to create the DB and IMAP folders before the cron job runs!
 ```
 dmarc-report:
   image: "gutmensch/dmarc-report:latest"
@@ -38,6 +38,5 @@ dmarc-report:
     - "PARSER_IMAP_PASS=foobar"
     - "PARSER_IMAP_READ_FOLDER=Inbox"
     - "PARSER_IMAP_MOVE_FOLDER=processed"
-    - "PARSER_PROCESS_INTERVAL=@hourly"
 ```
 
diff --git a/manifest/entrypoint.sh b/manifest/entrypoint.sh
index 1ed8034..8196407 100644
--- a/manifest/entrypoint.sh
+++ b/manifest/entrypoint.sh
@@ -39,11 +39,6 @@ if [[ -v TEMPLATE_PERL_CONF ]] ; then
   done
 fi
 
-if [[ -v PARSER_PROCESS_INTERVAL ]] ; then
-  cmd=$(awk '{$1=""; print $0}' /etc/cron.d/root)
-  echo "${PARSER_PROCESS_INTERVAL} ${cmd}" > /etc/cron.d/root
-fi
-
 # Start supervisord and services
 /usr/bin/supervisord -n -c /etc/supervisord.conf
 
diff --git a/manifest/etc/cron.d/root b/manifest/etc/cron.d/root
index 9fc590b..2e3c129 100644
--- a/manifest/etc/cron.d/root
+++ b/manifest/etc/cron.d/root
@@ -1 +1,2 @@
-@hourly /usr/bin/dmarcts-report-parser.pl -i -d -r 1>>/var/log/nginx/dmarc-reports.log 2>&1
+15 * * * * /usr/bin/dmarcts-report-parser.pl -i -d -r 1>>/var/log/nginx/dmarc-reports.log 2>&1
+