diff --git a/infrastructure-playbooks/cephadm-adopt.yml b/infrastructure-playbooks/cephadm-adopt.yml
index 2ecf68dbdf..b410afc8f9 100644
--- a/infrastructure-playbooks/cephadm-adopt.yml
+++ b/infrastructure-playbooks/cephadm-adopt.yml
@@ -1485,6 +1485,7 @@
               service_id: "{{ ansible_facts['hostname'] }}"
               placement:
                 label: "{{ monitoring_group_name }}"
+                count: "{{ groups.get(monitoring_group_name, []) | length }}"
               {% if grafana_server_addr is defined %}
               networks:
               - {{ grafana_server_addr }}