diff --git a/module/install/js/license.js b/module/install/js/license.js
index 99df7e1e08..a6f1c1055b 100644
--- a/module/install/js/license.js
+++ b/module/install/js/license.js
@@ -1,4 +1,8 @@
 $(document).ready(function()
 {
-    $('#agree').change(function(){$('.btn-install').attr('disabled', !$(this).prop('checked'));}); 
+    $('#agree').change(function()
+    {
+        $('.btn-install').attr('disabled', !$(this).prop('checked'));
+        $('.btn-install').css('pointer-events', $(this).prop('checked') ? 'auto' : 'none');
+    }); 
 });