diff --git a/playbooks/install_mqtt_srv.yml b/playbooks/install_mqtt_srv.yml
index 6e5bdd2..2df0a40 100644
--- a/playbooks/install_mqtt_srv.yml
+++ b/playbooks/install_mqtt_srv.yml
@@ -6,7 +6,7 @@
       ansible.builtin.apt:
         name: 
           - python3-pip
-      when: inventory_hostname not in groups['nas','router']
+      when: inventory_hostname not in groups['nas'] and inventory_hostname not in groups['router']
       become: "{{ 'no' if inventory_hostname in groups['nas'] else 'yes' }}"