diff --git a/wts/resources/oauth2.py b/wts/resources/oauth2.py
index 189ec2b..242f008 100644
--- a/wts/resources/oauth2.py
+++ b/wts/resources/oauth2.py
@@ -8,9 +8,14 @@
 
 from ..models import RefreshToken, db
 from ..utils import get_oauth_client
+import logging
+import sys
 
 
 def client_do_authorize():
+    log = logging.getLogger("authlib")
+    log.addHandler(logging.StreamHandler(sys.stdout))
+    log.setLevel(logging.DEBUG)
     requested_idp = flask.session.get("idp", "default")
     client = get_oauth_client(idp=requested_idp)
     token_url = client.metadata["access_token_url"]