diff --git a/src/satosa/frontends/openid_connect.py b/src/satosa/frontends/openid_connect.py
index 40b6730d1..88041b373 100644
--- a/src/satosa/frontends/openid_connect.py
+++ b/src/satosa/frontends/openid_connect.py
@@ -72,7 +72,7 @@ def __init__(self, auth_req_callback_func, internal_attributes, conf, base_url,
         )
 
         db_uri = self.config.get("db_uri")
-        self.stateless = StorageBase.type(db_uri) == "stateless"
+        self.stateless = db_uri and StorageBase.type(db_uri) == "stateless"
         self.user_db = (
             StorageBase.from_uri(db_uri, db_name="satosa", collection="authz_codes")
             if db_uri and not self.stateless