diff --git a/roles/matrix-bridge-mautrix-hangouts/defaults/main.yml b/roles/matrix-bridge-mautrix-hangouts/defaults/main.yml
index 89276be8..4ea59c01 100644
--- a/roles/matrix-bridge-mautrix-hangouts/defaults/main.yml
+++ b/roles/matrix-bridge-mautrix-hangouts/defaults/main.yml
@@ -120,7 +120,7 @@ matrix_mautrix_hangouts_configuration_yaml: |
               # The prefix below is not implicitly added. This URL and all subpaths should be proxied
               # or otherwise pointed to the appservice's webserver to the path specified below (prefix).
               # This path should usually include a trailing slash.
-              public: "/login/"
+              public: "{{ matrix_domain }}/login/"
               # Internal prefix in the appservice web server for the login endpoints.
               prefix: /login