diff --git a/roles/kubernetes/preinstall/tasks/0020-verify-settings.yml b/roles/kubernetes/preinstall/tasks/0020-verify-settings.yml
index 9011792a0..95086e6f9 100644
--- a/roles/kubernetes/preinstall/tasks/0020-verify-settings.yml
+++ b/roles/kubernetes/preinstall/tasks/0020-verify-settings.yml
@@ -95,6 +95,7 @@
 - name: Stop if ip var does not match local ips
   assert:
     that: ip in ansible_all_ipv4_addresses
+    msg: "'{{ ansible_all_ipv4_addresses }}' do not contain '{{ ip }}'"
   when:
     - not ignore_assert_errors
     - ip is defined