diff --git a/zabbix/agent.yaml b/zabbix/agent.yaml
index 4f674de..71b96a3 100644
--- a/zabbix/agent.yaml
+++ b/zabbix/agent.yaml
@@ -3,7 +3,7 @@
 #- hosts: {"{ hostvars[hostname].ansible_host }"}
 
 ---
-- hosts: {{ hostvars['hostname'].ansible_host }}
+- hosts: "{{ hostvars['hostname'].ansible_host }}"
   gather_facts: false
   vars:
     ansible_python_interpreter: /usr/bin/python3