diff --git a/readme-vars.yml b/readme-vars.yml
index a0c31a8..0b545bf 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -161,6 +161,8 @@ init_diagram: |
     svc-nginx -> legacy-services
     init-services -> svc-php-fpm
     svc-php-fpm -> legacy-services
+    init-services -> svc-prom
+    svc-prom -> legacy-services
     init-services -> svc-sidekiq
     svc-sidekiq -> legacy-services
     init-services -> svc-streaming