diff --git a/defaults/main.yml b/defaults/main.yaml
similarity index 100%
rename from defaults/main.yml
rename to defaults/main.yaml
diff --git a/meta/main.yml b/meta/main.yaml
similarity index 100%
rename from meta/main.yml
rename to meta/main.yaml
diff --git a/tasks/main.yml b/tasks/main.yaml
similarity index 96%
rename from tasks/main.yml
rename to tasks/main.yaml
index 3961a0c..6145d38 100644
--- a/tasks/main.yml
+++ b/tasks/main.yaml
@@ -12,7 +12,7 @@
   when: "'vmx' not in cpu_info.stdout and 'svm' not in cpu_info.stdout"
 
 - name: Include OS-specific variables
-  ansible.builtin.include_vars: "{{ ansible_os_family }}.yml"
+  ansible.builtin.include_vars: "{{ ansible_facts['os_family'] }}.yaml"
 
 - name: Add virt-manager to list of kvm packages
   ansible.builtin.set_fact:
diff --git a/vars/Archlinux.yml b/vars/Archlinux.yaml
similarity index 100%
rename from vars/Archlinux.yml
rename to vars/Archlinux.yaml
diff --git a/vars/Debian.yml b/vars/Debian.yaml
similarity index 100%
rename from vars/Debian.yml
rename to vars/Debian.yaml
diff --git a/vars/RedHat.yml b/vars/RedHat.yaml
similarity index 100%
rename from vars/RedHat.yml
rename to vars/RedHat.yaml