diff --git a/spec/acceptance/server_instance_spec.rb b/spec/acceptance/server_instance_spec.rb
index 93192bafb3..d00ce95f83 100644
--- a/spec/acceptance/server_instance_spec.rb
+++ b/spec/acceptance/server_instance_spec.rb
@@ -156,6 +156,6 @@ class { 'postgresql::server':
 
   it 'installs postgres instance test1' do
     export_locales('en_US.UTF-8 ')
-    apply_manifest(pp, catch_failures: true)
+    idempotent_apply(pp)
   end
 end