1 files changed, 4 insertions, 0 deletions
diff --git a/synapse/app/media_repository.py b/synapse/app/media_repository.py
index 6e5ec01c6c..44c19a1bef 100644
--- a/synapse/app/media_repository.py
+++ b/synapse/app/media_repository.py
@@ -41,6 +41,8 @@ from synapse.api.urls import (
 )
 from synapse.crypto import context_factory
 
+from synapse import events
+
 
 from twisted.internet import reactor, defer
 from twisted.web.resource import Resource
@@ -162,6 +164,8 @@ def start(config_options):
 
     setup_logging(config.worker_log_config, config.worker_log_file)
 
+    events.USE_FROZEN_DICTS = config.use_frozen_dicts
+
     database_engine = create_engine(config.database_config)
 
     tls_server_context_factory = context_factory.ServerContextFactory(config)