diff --git a/tasks/main.yaml b/tasks/main.yaml
index d0db74f..ab9d7f8 100644
--- a/tasks/main.yaml
+++ b/tasks/main.yaml
@@ -17,7 +17,7 @@
   when: ansible_os_family == 'Debian'
 
 - name: Include OS-specific variables.
-  include_vars: "{{ ansible_distribution|lower }}-{{ ansible_distribution_major_version }}.yaml"
+  include_vars: "{{ ansible_os_family|lower }}.yaml"
   when: ansible_os_family == 'RedHat'
 
 - include: "{{ nodepool_task }}.yaml"
diff --git a/vars/centos-7.yaml b/vars/redhat.yaml
similarity index 100%
rename from vars/centos-7.yaml
rename to vars/redhat.yaml