1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/config/account_validity.py b/synapse/config/account_validity.py
index ffaffc4931..b56c2a24df 100644
--- a/synapse/config/account_validity.py
+++ b/synapse/config/account_validity.py
@@ -76,7 +76,7 @@ class AccountValidityConfig(Config):
             )
 
         if self.account_validity_renew_by_email_enabled:
-            if not self.public_baseurl:
+            if not self.root.server.public_baseurl:
                 raise ConfigError("Can't send renewal emails without 'public_baseurl'")
 
         # Load account validity templates.