diff --git a/README.md b/README.md
index 727f96a..b7d4e02 100644
--- a/README.md
+++ b/README.md
@@ -68,7 +68,6 @@ You can add options on the initial Sitemapper object when instantiating it.
 + `debug`: (Boolean) - Enables/Disables debug console logging. Default: False
 + `concurrency`: (Number) - Sets the maximum number of concurrent sitemap crawling threads. Default: 10
 + `retries`: (Number) - Sets the maximum number of retries to attempt in case of an error response (e.g. 404 or Timeout). Default: 0
-+ `requestHeaders`: (Object) - Additional Request Headers
 + `insecure`: (Boolean) - Ignore invalid certificates
 
 ```javascript
diff --git a/src/assets/sitemapper.js b/src/assets/sitemapper.js
index 164a588..831c959 100644
--- a/src/assets/sitemapper.js
+++ b/src/assets/sitemapper.js
@@ -41,6 +41,8 @@ export default class Sitemapper {
     this.concurrency = settings.concurrency || 10;
     this.retries = settings.retries || 0;
     this.insecure = settings.insecure || false;
+    this.concurrency = settings.concurrency || 10;
+    this.retries = settings.retries || 0;
   }
 
   /**