diff --git a/public/installer/js/script.js b/public/installer/js/script.js
index 80d728e10..314d3eda8 100644
--- a/public/installer/js/script.js
+++ b/public/installer/js/script.js
@@ -2,7 +2,6 @@ window.onload = function() {
 
     var welcome = document.getElementById('welcome');
     var requirement = document.getElementById('requirement');
-    var permission = document.getElementById('permission');
     var environment = document.getElementById('environment');
     var migration = document.getElementById('migration');
     var admin =  document.getElementById('admin');
@@ -83,4 +82,4 @@ window.onload = function() {
             location.reload();
         }
     }
-};
\ No newline at end of file
+};