diff --git a/src/js/src/main/WebConfig.js b/src/js/src/main/WebConfig.js
index 8aa41bc..72ca1a0 100644
--- a/src/js/src/main/WebConfig.js
+++ b/src/js/src/main/WebConfig.js
@@ -24,7 +24,7 @@
     }
   }
 
-  configurator = new Proxy(base, {
+  const configurator = new Proxy(base, {
     set(obj, prop, value) {
       if (prop in obj) {
         obj[prop] = value;