diff --git a/web/skins/classic/views/js/console.js b/web/skins/classic/views/js/console.js
index a4d05bbcb..850703bb7 100644
--- a/web/skins/classic/views/js/console.js
+++ b/web/skins/classic/views/js/console.js
@@ -167,7 +167,7 @@ function initPage() {
       return;
     }
     function_form.elements['newFunction'].value = monitor.Function;
-    function_form.elements['newEnabled'].checked = monitor.Enabled;
+    function_form.elements['newEnabled'].checked = monitor.Enabled == '1';
     function_form.elements['mid'].value = mid;
     document.getElementById('function_monitor_name').innerHTML = monitor.Name;