diff --git a/spec/unit/puppet/type/keycloak_realm_spec.rb b/spec/unit/puppet/type/keycloak_realm_spec.rb
index 191ba3b1..c10c07b8 100644
--- a/spec/unit/puppet/type/keycloak_realm_spec.rb
+++ b/spec/unit/puppet/type/keycloak_realm_spec.rb
@@ -81,7 +81,7 @@
   describe 'enumerable properties' do
     {
       web_authn_policy_attestation_conveyance_preference: [:none, :indirect, :direct],
-      web_authn_policy_authenticator_attachment: [:platform, :cross_platform],
+      web_authn_policy_authenticator_attachment: [:platform, :'cross-platform'],
       web_authn_policy_require_resident_key: [:Yes, :No],
       web_authn_policy_user_verification_requirement: [:required, :preferred, :discouraged]
     }.each do |p, values|