diff --git a/roles/nameserver/tasks/install_bind.yml b/roles/nameserver/tasks/install_bind.yml
index 6ef26d5..5476440 100644
--- a/roles/nameserver/tasks/install_bind.yml
+++ b/roles/nameserver/tasks/install_bind.yml
@@ -8,7 +8,7 @@
     path: "{{ named_conf_options }}"
     regexp: "{{ item.regexp }}"
     replace: "{{ item.option }}"
-    validate: "{{ named_checkconf }} {{ named_conf_options }}"
+    validate: "{{ named_checkconf }} %s"
   loop:
     - { regexp: '^\s*listen-on \{(?:[\s\n]*(?:\d{1,3}\.){3}\d{1,3};)*[\s\n]*\};', option: "\tlisten-on { {{ ansible_default_ipv4.address }}; };"}
     - { regexp: '^\s*listen-on-v6 \{[\s\n]*any;[\s\n]*\};', option: "\tlisten-on-v6 { {{ ansible_default_ipv6.address }}; };"}