diff --git a/close_pull_requests.py b/close_pull_requests.py
index 6a46166..245bbcc 100755
--- a/close_pull_requests.py
+++ b/close_pull_requests.py
@@ -66,7 +66,7 @@
                          secure_config.get("github", "password"))
 
 orgs = ghub.get_user().get_orgs()
-orgs_dict = dict(zip([o.name.lower() for o in orgs], orgs))
+orgs_dict = dict(zip([o.login.lower() for o in orgs], orgs))
 for section in config.sections():
     # Each section looks like [project "openstack/project"]
     m = PROJECT_RE.match(section)