diff --git a/Dockerfile b/Dockerfile
index 46e61d9..d6163c4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,6 +15,7 @@ ENV UID 100
 ENV GID 100
 ENV CRONFILE /etc/crontabs/root
 ENV LOGFILE /app/log/backup.log
+ENV DELETE_AFTER 0
 
 COPY entrypoint.sh /usr/local/bin/entrypoint.sh
 COPY backup.sh /app/
diff --git a/README.md b/README.md
index ece8cd8..df88114 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,11 @@ Example for hourly backups
 docker run -d --restart=always --name bitwarden_backup --volumes-from=bitwarden -e CRON_TIME="0 * * * *" bruceforce/bw_backup
 ```
 
+Example for backups that delete after 30 days
+```sh
+docker run -d --restart=always --name bitwarden_backup --volumes-from=bitwarden -e DELETE_AFTER=30 bruceforce/bw_backup
+```
+
 ### Manual Backups
 You can use the crontab of your host to schedule the backup and the container will only be running during the backup process.
 
@@ -45,6 +50,7 @@ docker run --rm --volumes-from=bitwarden -v /tmp/myBackup:/myBackup --entrypoint
 | GID | Group ID to run the cron job with |
 | LOGFILE | Path to the logfile *inside* the container |
 | CRONFILE | Path to the cron file *inside* the container |
+| DELETE_AFTER | Delete old backups after X many days |
 
 ## Common erros
 ### Wrong permissions
diff --git a/backup.sh b/backup.sh
index dff1092..053b164 100644
--- a/backup.sh
+++ b/backup.sh
@@ -7,13 +7,20 @@ fi
 
 if [ $TIMESTAMP = true ]
 then
-  BACKUP_FILE="$(echo "$BACKUP_FILE")_$(date "+%F-%H%M%S")"
+  FINAL_BACKUP_FILE="$(echo "$BACKUP_FILE")_$(date "+%F-%H%M%S")"
+else
+  FINAL_BACKUP_FILE=$BACKUP_FILE
 fi
 
-/usr/bin/sqlite3 $DB_FILE ".backup $BACKUP_FILE"
+/usr/bin/sqlite3 $DB_FILE ".backup $FINAL_BACKUP_FILE"
 if [ $? -eq 0 ] 
 then 
   echo "$(date "+%F %T") - Backup successfull"
 else
   echo "$(date "+%F %T") - Backup unsuccessfull"
 fi
+
+if [ ! -z $DELETE_AFTER ] && [ $DELETE_AFTER -gt 0 ]
+then
+  find $(dirname "$BACKUP_FILE") -name "$(basename "$BACKUP_FILE")*" -type f -mtime +$DELETE_AFTER -exec rm -f {} \; -exec echo "Deleted {} after $DELETE_AFTER days" \;
+fi
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