diff --git a/pyam/iiasa.py b/pyam/iiasa.py
index c031032b9..82d3c30bf 100644
--- a/pyam/iiasa.py
+++ b/pyam/iiasa.py
@@ -184,10 +184,10 @@ def __init__(self, name=None, creds=None, auth_url=_AUTH_URL):
     @lru_cache()
     def _connection_map(self):
         # TODO: application-list will be reimplemented in conjunction with ixmp-server
-        url = "/".join([self._auth_url, "legacy", "applications"])
         r = self.auth.client.get("legacy/applications", headers=self.auth())
         if r.status_code >= 400:
             raise ValueError("Unknown API error: " + r.text)
+
         aliases = set()
         conn_map = {}
         for x in r.json():