diff --git a/pyhap/hap_handler.py b/pyhap/hap_handler.py
index fbf52fd8..103cdc10 100644
--- a/pyhap/hap_handler.py
+++ b/pyhap/hap_handler.py
@@ -585,7 +585,7 @@ def _pair_verify_two(self, tlv_objects: Dict[bytes, bytes]) -> None:
                 self.client_address,
                 client_uuid,
                 raw_public_key.hex(),
-                self.state.paired_clients,
+                {uuid: key.hex() for uuid, key in self.state.paired_clients.items()},
             )
             self._send_authentication_error_tlv_response(HAP_TLV_STATES.M4)
             return
diff --git a/pyhap/state.py b/pyhap/state.py
index 2cabe240..3503b976 100644
--- a/pyhap/state.py
+++ b/pyhap/state.py
@@ -48,7 +48,7 @@ def __init__(
         self.setup_id = util.generate_setup_id()
 
         self.config_version = DEFAULT_CONFIG_VERSION
-        self.paired_clients = {}
+        self.paired_clients: Dict[UUID, bytes] = {}
         self.client_properties = {}
 
         self.private_key = ed25519.Ed25519PrivateKey.generate()