1 files changed, 2 insertions, 2 deletions
diff --git a/synapse/rest/client/v2_alpha/register.py b/synapse/rest/client/v2_alpha/register.py
index 9f750f7cf5..da9ebd540d 100644
--- a/synapse/rest/client/v2_alpha/register.py
+++ b/synapse/rest/client/v2_alpha/register.py
@@ -467,7 +467,7 @@ class RegisterRestServlet(RestServlet):
             yield self.registration_handler.post_consent_actions(registered_user_id)
 
         if self.hs.config.worker_app:
-            self._invalidate_caches_client(registered_user_id)
+            yield self._invalidate_caches_client(registered_user_id)
 
         defer.returnValue((200, return_dict))
 
@@ -481,7 +481,7 @@ class RegisterRestServlet(RestServlet):
         )
 
         if self.hs.config.worker_app:
-            self._invalidate_caches_client(user_id)
+            yield self._invalidate_caches_client(user_id)
 
         defer.returnValue((yield self._create_registration_details(user_id, body)))