diff --git a/lib/pleroma/web/oauth/oauth_controller.ex b/lib/pleroma/web/oauth/oauth_controller.ex
index e418dc70d..1cd7294e7 100644
--- a/lib/pleroma/web/oauth/oauth_controller.ex
+++ b/lib/pleroma/web/oauth/oauth_controller.ex
@@ -460,7 +460,7 @@ defp do_create_authorization(
   end
 
   # Special case: Local MastodonFE
-  defp redirect_uri(%Plug.Conn{} = conn, "."), do: mastodon_api_url(conn, :login)
+  defp redirect_uri(%Plug.Conn{} = conn, "."), do: auth_url(conn, :login)
 
   defp redirect_uri(%Plug.Conn{}, redirect_uri), do: redirect_uri