diff --git a/server/plugins-available/cron_plugin.inc.php b/server/plugins-available/cron_plugin.inc.php
index 1a13a57fcdddf3aa2fe20a9ec9c1165656d4452d..83537beb133bd4e7bf64ded5a350dccb429f77f0 100644
--- a/server/plugins-available/cron_plugin.inc.php
+++ b/server/plugins-available/cron_plugin.inc.php
@@ -145,10 +145,10 @@ class cron_plugin {
               exec('setquota -T -u '.$username.' 604800 604800 -a &> /dev/null');
             } elseif ($file_system == 'xfs') {
                 
-              exec("xfs_quota -x -c 'limit -g bsoft=$mb_soft" . 'm'. " bhard=$mb_hard" . 'm'. " $username' $primitive_root");
+              exec("xfs_quota -x -c 'limit -u bsoft=$mb_soft" . 'm'. " bhard=$mb_hard" . 'm'. " $username' $primitive_root");
 
               // xfs only supports timers globally, not per user.
-              exec("xfs_quota -x -c 'timer -bir -i 604800'");
+              exec("xfs_quota -x -c 'timer -bir -i 604800' $primitive_root");
 
               unset($project_uid, $username_position, $xfs_projects);
               unset($primitive_root, $df_output, $mb_hard, $mb_soft);