diff --git a/spec/acceptance/preferred_servers_spec.rb b/spec/acceptance/preferred_servers_spec.rb
index b4854bbe..150e790b 100644
--- a/spec/acceptance/preferred_servers_spec.rb
+++ b/spec/acceptance/preferred_servers_spec.rb
@@ -17,7 +17,7 @@ class { '::ntp':
   MANIFEST
 
   it 'applies cleanly' do
-    idempotent_apply(pp)
+    idempotent_apply(pp, debug: true)
     expect(file(config.to_s)).to be_file
     ['server a', 'server b', %r{server c (iburst\s|)prefer}, %r{server d (iburst\s|)prefer}].each do |check|
       expect(file(config.to_s).content).to match(check)