diff --git a/spec/classes/cinder_init_spec.rb b/spec/classes/cinder_init_spec.rb
index 895924f9..d9eed9dd 100644
--- a/spec/classes/cinder_init_spec.rb
+++ b/spec/classes/cinder_init_spec.rb
@@ -28,7 +28,7 @@ describe 'cinder' do
           :rabbit_use_ssl                  => '<SERVICE DEFAULT>',
           :heartbeat_timeout_threshold     => '<SERVICE DEFAULT>',
           :heartbeat_rate                  => '<SERVICE DEFAULT>',
-          :heartbeat_in_pthread            => '<SERVICE DEFAULT>',
+          :heartbeat_in_pthread            => nil,
           :rabbit_qos_prefetch_count       => '<SERVICE DEFAULT>',
           :kombu_reconnect_delay           => '<SERVICE DEFAULT>',
           :kombu_failover_strategy         => '<SERVICE DEFAULT>',