diff --git a/lib/components/Redoc/redoc.js b/lib/components/Redoc/redoc.js
index cdd20be0..77b3bf8f 100644
--- a/lib/components/Redoc/redoc.js
+++ b/lib/components/Redoc/redoc.js
@@ -16,7 +16,7 @@ import {ElementRef} from 'angular2/core';
 import {BrowserDomAdapter, bootstrap} from 'angular2/platform/browser';
 import detectScollParent from 'scrollparent';
 
-import {isFunction} from 'angular2/src/facade/lang';
+import {isFunction, isString} from 'angular2/src/facade/lang';
 
 let optionNames = new Set(['scrollYOffset', 'disableLazySchemas']);
 
@@ -83,7 +83,7 @@ export default class Redoc extends BaseComponent {
       }
     }
 
-    this.options.disableLazySchemas = (this.options.disableLazySchemas !== null);
+    if (isString(this.options.disableLazySchemas)) this.options.disableLazySchemas = true;
   }
 
   static showLoadingAnimation() {