X-Git-Url: https://projects.mako.cc/source/twitter-api-cdsw/blobdiff_plain/043b63c67557591f1e85b53d17fc8a1a797f48ca..HEAD:/oauthlib/oauth2/rfc6749/grant_types/client_credentials.py

diff --git a/oauthlib/oauth2/rfc6749/grant_types/client_credentials.py b/oauthlib/oauth2/rfc6749/grant_types/client_credentials.py
index 30df247..49173cc 100644
--- a/oauthlib/oauth2/rfc6749/grant_types/client_credentials.py
+++ b/oauthlib/oauth2/rfc6749/grant_types/client_credentials.py
@@ -83,7 +83,7 @@ class ClientCredentialsGrant(GrantTypeBase):
         return headers, json.dumps(token), 200
 
     def validate_token_request(self, request):
-        if not getattr(request, 'grant_type'):
+        if not getattr(request, 'grant_type', None):
             raise errors.InvalidRequestError('Request is missing grant type.',
                                              request=request)