diff --git a/descarteslabs/auth/__init__.py b/descarteslabs/auth/__init__.py
index 4dec8d98..3ac42a3b 100644
--- a/descarteslabs/auth/__init__.py
+++ b/descarteslabs/auth/__init__.py
@@ -179,6 +179,6 @@ def _get_token(self, timeout=100):
 
 
 if __name__ == '__main__':
-    auth = Auth()
+    auth = Auth.from_environment_or_token_json()
 
     print(auth.token)