diff --git a/roles/etc_hosts/tasks/main.yml b/roles/etc_hosts/tasks/main.yml
index 1b2941d..daeed59 100644
--- a/roles/etc_hosts/tasks/main.yml
+++ b/roles/etc_hosts/tasks/main.yml
@@ -1,7 +1,7 @@
 ---
 - name: Set etc_hosts_file if running in Docker
   set_fact:
-    etc_hosts_file: "{{ __etc_hosts_file }}.docker"
+    __etc_hosts_file: "{{ __etc_hosts_file }}.docker"
   when:
     - ansible_virtualization_type == "docker"