diff --git a/files/ansible-playbooks/afterupgrade_check.yml b/files/ansible-playbooks/afterupgrade_check.yml
index 71d15ab..e282ff4 100644
--- a/files/ansible-playbooks/afterupgrade_check.yml
+++ b/files/ansible-playbooks/afterupgrade_check.yml
@@ -145,7 +145,7 @@
       ignore_errors: true
 
     - name: Set eth0_macaddress fact
-      when: mac_probe is defined and mac_probe.rc == 0
+      when: mac_probe is defined and (mac_probe.rc | default(1)) == 0
       ansible.builtin.set_fact:
         eth0_macaddress: "{{ (mac_probe.stdout | default('') | trim) }}"