diff --git a/lib/Requestable.js b/lib/Requestable.js
index bad111ac..10413986 100644
--- a/lib/Requestable.js
+++ b/lib/Requestable.js
@@ -54,6 +54,7 @@ class Requestable {
          token: auth.token,
          username: auth.username,
          password: auth.password,
+         otp: auth.otp || null
       };
       this.__AcceptHeader = AcceptHeader || 'v3';
 
@@ -102,6 +103,10 @@ class Requestable {
       if (this.__authorizationHeader) {
          headers.Authorization = this.__authorizationHeader;
       }
+      
+      if (this.__auth.otp) {
+         headers['X-GitHub-OTP'] = this.__auth.otp;
+      }
 
       return headers;
    }