diff --git a/synapse/config/workers.py b/synapse/config/workers.py
index ad06ba9691..ea48d931a1 100644
--- a/synapse/config/workers.py
+++ b/synapse/config/workers.py
@@ -28,7 +28,6 @@ class WorkerConfig(Config):
         self.worker_pid_file = config.get("worker_pid_file")
         self.worker_log_file = config.get("worker_log_file")
         self.worker_log_config = config.get("worker_log_config")
-        self.worker_replication_url = config.get("worker_replication_url")
         self.worker_replication_host = config.get("worker_replication_host", None)
         self.worker_replication_port = config.get("worker_replication_port", None)
         self.worker_name = config.get("worker_name", self.worker_app)