diff --git a/roles/global_defaults/tasks/validation.yml b/roles/global_defaults/tasks/validation.yml
index 5f3bd09..6e19900 100644
--- a/roles/global_defaults/tasks/validation.yml
+++ b/roles/global_defaults/tasks/validation.yml
@@ -333,15 +333,11 @@
 - name: Validate disk mount definitions
   when: system_cfg.disks is defined
   vars:
-    reserved_mounts:
-      - /boot
-      - /boot/efi
-      - /home
-      - /swap
-      - /var
-      - /var/cache/pacman/pkg
-      - /var/log
-      - /var/log/audit
+    reserved_mounts: >-
+      {{
+        ['/boot', '/boot/efi', '/home', '/var', '/var/log', '/var/log/audit']
+        + (['/var/cache/pacman/pkg'] if os == 'archlinux' else [])
+      }}
     disk_mount: "{{ (item.mount.path | default('') | string) | trim }}"
     disk_fstype: "{{ (item.mount.fstype | default('') | string) | trim }}"
     disk_device: "{{ (item.device | default('') | string) | trim }}"