1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/crypto/keyring.py b/synapse/crypto/keyring.py
index 6cf384f6a1..c88afb2986 100644
--- a/synapse/crypto/keyring.py
+++ b/synapse/crypto/keyring.py
@@ -176,7 +176,7 @@ class Keyring:
         self._local_verify_keys: Dict[str, FetchKeyResult] = {}
         for key_id, key in hs.config.key.old_signing_keys.items():
             self._local_verify_keys[key_id] = FetchKeyResult(
-                verify_key=key, valid_until_ts=key.expired_ts
+                verify_key=key, valid_until_ts=key.expired
             )
 
         vk = get_verify_key(hs.signing_key)