diff --git a/sanic/request.py b/sanic/request.py
index 69307222..8d3aca32 100644
--- a/sanic/request.py
+++ b/sanic/request.py
@@ -79,7 +79,7 @@ class Request(dict):
         :return: token related to request
         """
         auth_header = self.headers.get('Authorization')
-        if 'Token ' in auth_header:
+        if auth_header is not None and 'Token ' in auth_header:
             return auth_header.partition('Token ')[-1]
         else:
             return auth_header