diff --git a/libs/backends/dummy/dummy_audiobackend.cc b/libs/backends/dummy/dummy_audiobackend.cc
index ba51944fb5..34de0da52e 100644
--- a/libs/backends/dummy/dummy_audiobackend.cc
+++ b/libs/backends/dummy/dummy_audiobackend.cc
@@ -96,6 +96,7 @@ DummyAudioBackend::DummyAudioBackend (AudioEngine& e, AudioBackendInfo& info)
 
 DummyAudioBackend::~DummyAudioBackend ()
 {
+	clear_ports ();
 	pthread_mutex_destroy (&_port_callback_mutex);
 }