1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/rest/client/v1/register.py b/synapse/rest/client/v1/register.py
index ce7099b18f..8e1f1b7845 100644
--- a/synapse/rest/client/v1/register.py
+++ b/synapse/rest/client/v1/register.py
@@ -429,7 +429,7 @@ class CreateUserRestServlet(ClientV1RestServlet):
         user_id, token = yield handler.get_or_create_user(
             localpart=localpart,
             displayname=displayname,
-            duration_seconds=duration_seconds,
+            duration_in_ms=(duration_seconds * 1000),
             password_hash=password_hash
         )