diff --git a/vars/centos-7.yml b/vars/centos-7.yml
index c51d7af32..c2efe174c 100644
--- a/vars/centos-7.yml
+++ b/vars/centos-7.yml
@@ -1,6 +1,6 @@
 is_redhat: True
 is_centos: True
-is_centos7: True
+is_centos_7: True
 
 dns_service: named
 dns_user: named