diff --git a/roles/matrix-grafana/templates/grafana.ini.j2 b/roles/matrix-grafana/templates/grafana.ini.j2
index 42cfcb12..322762b4 100644
--- a/roles/matrix-grafana/templates/grafana.ini.j2
+++ b/roles/matrix-grafana/templates/grafana.ini.j2
@@ -1,3 +1,6 @@
+[server]
+root_url = "https://{{ matrix_server_fqn_grafana }}"
+
 [security]
 # default admin user, created on startup
 admin_user = "{{ matrix_grafana_default_admin_user }}"