1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/replication/http/_base.py b/synapse/replication/http/_base.py
index f1abb98653..2bd244ed79 100644
--- a/synapse/replication/http/_base.py
+++ b/synapse/replication/http/_base.py
@@ -275,7 +275,7 @@ class ReplicationEndpoint(metaclass=abc.ABCMeta):
                             if attempts > cls.RETRY_ON_CONNECT_ERROR_ATTEMPTS:
                                 raise
 
-                            delay = 2 ** attempts
+                            delay = 2**attempts
                             logger.warning(
                                 "%s request connection failed; retrying in %ds: %r",
                                 cls.NAME,