diff --git a/provision.yml b/provision.yml
index dea8b43..0dc4330 100644
--- a/provision.yml
+++ b/provision.yml
@@ -60,5 +60,5 @@
         line: "{{ hostvars[item].ansible_default_ipv4.address }} {{ item }}"
         state: present
       when: hostvars[item].ansible_default_ipv4.address is defined
-      with_items: play_hosts
+      with_items: "{{ play_hosts }}"
   tags: [ prepare ]