1 files changed, 5 insertions, 1 deletions
diff --git a/synapse/federation/sender/transaction_manager.py b/synapse/federation/sender/transaction_manager.py
index 0c1cad86ab..75081810fd 100644
--- a/synapse/federation/sender/transaction_manager.py
+++ b/synapse/federation/sender/transaction_manager.py
@@ -16,6 +16,7 @@ from typing import TYPE_CHECKING, List
 
 from prometheus_client import Gauge
 
+from synapse.api.constants import EduTypes
 from synapse.api.errors import HttpResponseException
 from synapse.events import EventBase
 from synapse.federation.persistence import TransactionActions
@@ -126,7 +127,10 @@ class TransactionManager:
                 len(edus),
             )
             if issue_8631_logger.isEnabledFor(logging.DEBUG):
-                DEVICE_UPDATE_EDUS = {"m.device_list_update", "m.signing_key_update"}
+                DEVICE_UPDATE_EDUS = {
+                    EduTypes.DEVICE_LIST_UPDATE,
+                    EduTypes.SIGNING_KEY_UPDATE,
+                }
                 device_list_updates = [
                     edu.content for edu in edus if edu.edu_type in DEVICE_UPDATE_EDUS
                 ]