diff --git a/server/plugins-available/nginx_plugin.inc.php b/server/plugins-available/nginx_plugin.inc.php
index 0b0550a924c80a42b5a4160dee5f42f04c93b4d1..2a4950446dc8af83bc2031bd15a09dca8dd6db3b 100644
--- a/server/plugins-available/nginx_plugin.inc.php
+++ b/server/plugins-available/nginx_plugin.inc.php
@@ -745,7 +745,7 @@ class nginx_plugin {
           $file_system = explode(" ", $df_output)[0];
           $primitive_root = explode(" ", $df_output)[1];
 
-          if ( $file_system , array('ext2','ext3','ext4') ) {
+          if ( in_array($file_system , array('ext2','ext3','ext4'), true) ) {
             exec('setquota -u '. $username . ' ' . $blocks_soft . ' ' . $blocks_hard . ' 0 0 -a &> /dev/null');
             exec('setquota -T -u '.$username.' 604800 604800 -a &> /dev/null');
           } elseif ($file_system == 'xfs') {