diff --git a/tests/rest/test_events.py b/tests/rest/test_events.py
index 1dccf4c50330de404d0acc0197ef0fcdec5e1c99..fd2224f55fa2bf5457ce85eb1e8073a9732e576f 100644
--- a/tests/rest/test_events.py
+++ b/tests/rest/test_events.py
@@ -145,6 +145,7 @@ class EventStreamPermissionsTestCase(RestTestCase):
         )
         self.ratelimiter = hs.get_ratelimiter()
         self.ratelimiter.send_message.return_value = (True, 0)
+        hs.config.enable_registration_captcha = False
 
         hs.get_handlers().federation_handler = Mock()