diff --git a/README.md b/README.md
index a4cc404..9cb3d66 100644
--- a/README.md
+++ b/README.md
@@ -85,15 +85,15 @@ server "pfstat" {
 * Yearly views:
  
 It's possible to obtain and see yearly views. Uncomment blocks view on 
-both pfstat* files, and this need to change too crontab time to delete — 
-*(the third line)*.
+both pfstat* files; this need to change too the crontab time to delete — 
+*(the third line).*
 
 ### crontab
 
 ```
 ### pfstat
 *  * * * * /usr/local/bin/pfstat -q -d /var/db/pfstat/pfstat.db
-15 * * * * /usr/local/bin/pfstat -p -d /var/db/pfstat/pfstat.db; /dir/convert-img.sh ; chown -R www /var/www/htdocs/pfstat
+*/15 * * * * /usr/local/bin/pfstat -p -d /var/db/pfstat/pfstat.db; /dir/convert-img.sh ; chown -R www /var/www/htdocs/pfstat
 30 0 * * * /usr/local/bin/pfstat -t 30 -d /var/db/pfstat/pfstat.db
 ```