diff --git a/twython/twython.py b/twython/twython.py
index 49c2f65..372d259 100644
--- a/twython/twython.py
+++ b/twython/twython.py
@@ -259,7 +259,7 @@ class Twython(object):
             raise TwythonError('This function must be called after an API call.  It delivers header information.')
         if header in self._last_call['headers']:
             return self._last_call['headers'][header]
-        return None
+        return self._last_call
 
     def get_authentication_tokens(self):
         """Returns an authorization URL for a user to hit.