diff --git a/playbooks/HashicorpStack.yml b/playbooks/HashicorpStack.yml
index b38b9de..51ab080 100644
--- a/playbooks/HashicorpStack.yml
+++ b/playbooks/HashicorpStack.yml
@@ -3,7 +3,7 @@
     - role: ansible-consul
       become: true
     - role: ansible-hashicorp-vault
-      when: ansible_architecture == 'X86_64'
+      when: ansible_architecture == 'x86_64'
       become: true
     - role: ansible-nomad
       become: true