diff --git a/nixos/tests/matrix/mjolnir.nix b/nixos/tests/matrix/mjolnir.nix
index 54094ab9d61..b7ba02cfafd 100644
--- a/nixos/tests/matrix/mjolnir.nix
+++ b/nixos/tests/matrix/mjolnir.nix
@@ -44,6 +44,7 @@ import ../make-test-python.nix (
             tls_private_key_path = "${key}";
             enable_registration = true;
             registration_shared_secret = "supersecret-registration";
+            enable_registration_without_verification = true;
 
             listeners = [ {
               # The default but tls=false