diff --git a/apps/templates/prometheus.yaml b/apps/templates/prometheus.yaml
index ab04964..85e4363 100644
--- a/apps/templates/prometheus.yaml
+++ b/apps/templates/prometheus.yaml
@@ -34,6 +34,7 @@ spec:
             enabled: true
             storageClassName: longhorn
           env:
+            GF_SERVER_ROOT_URL: https://%(domain)s/
             GF_AUTH_GENERIC_OAUTH_ENABLED: "true"
             GF_AUTH_GENERIC_OAUTH_NAME: authentik
             GF_AUTH_GENERIC_OAUTH_SCOPES: openid profile email