diff --git a/src/index.js b/src/index.js
index 289a7c5..b214590 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,10 +1,7 @@
 import { CheckboxWidget } from './components';
 
 const applyConfig = (config) => {
-  config.widgets.type = {
-    ...config.widgets.type,
-    boolean: CheckboxWidget,
-  };
+  config.widgets.type.boolean = CheckboxWidget;
   return config;
 };