diff --git a/roles/vault/tasks/merge_variables.yml b/roles/vault/tasks/merge_variables.yml
index 65976f8..9c28f00 100644
--- a/roles/vault/tasks/merge_variables.yml
+++ b/roles/vault/tasks/merge_variables.yml
@@ -33,6 +33,7 @@
           | unique
           | sort
           }}"
+      when: vault_enable_tls
 
 - name: "Vault | Merge service registration configuration"
   vars: