diff --git a/Github/http.py b/Github/http.py
index 740f7a1..bc12114 100644
--- a/Github/http.py
+++ b/Github/http.py
@@ -163,7 +163,7 @@ class http:
     def data(self):
         #return session headers and auth
         headers = {**self.session.headers}
-        if self.auth:
+        if self.auth is not None:
             auth = {'username': self.auth.login, 'token': self.auth.password}
         auth = None
         return {'headers': headers, 'auth': auth}