1 files changed, 3 insertions, 1 deletions

diff --git a/synapse/app/synchrotron.py b/synapse/app/synchrotron.py

index 315c030694..a1c3b162f7 100644
--- a/synapse/app/synchrotron.py
+++ b/synapse/app/synchrotron.py
@@ -451,7 +451,9 @@ def start(config_options):
     )
 
     ss.setup()
-    reactor.callWhenRunning(_base.start, ss, config.worker_listeners)
+    reactor.addSystemEventTrigger(
+        "before", "startup", _base.start, ss, config.worker_listeners
+    )
 
     _base.start_worker_reactor("synapse-synchrotron", config)