1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/replication/tcp/redis.py b/synapse/replication/tcp/redis.py
index 7cccde097d..2f4d407f94 100644
--- a/synapse/replication/tcp/redis.py
+++ b/synapse/replication/tcp/redis.py
@@ -365,6 +365,6 @@ def lazyConnection(
     factory.continueTrying = reconnect
 
     reactor = hs.get_reactor()
-    reactor.connectTCP(host, port, factory, timeout=30, bindAddress=None)
+    reactor.connectTCP(host.encode(), port, factory, timeout=30, bindAddress=None)
 
     return factory.handler