1 files changed, 0 insertions, 1 deletions
diff --git a/synapse/rest/client/register.py b/synapse/rest/client/register.py
index be696c304b..3cb1e7e375 100644
--- a/synapse/rest/client/register.py
+++ b/synapse/rest/client/register.py
@@ -310,7 +310,6 @@ class UsernameAvailabilityRestServlet(RestServlet):
         self.hs = hs
         self.registration_handler = hs.get_registration_handler()
         self.ratelimiter = FederationRateLimiter(
-            hs.get_reactor(),
             hs.get_clock(),
             FederationRatelimitSettings(
                 # Time window of 2s