diff --git a/libs/ardour/test/playlist_layering_test.cc b/libs/ardour/test/playlist_layering_test.cc
index 278fb0ab78..218cb2b035 100644
--- a/libs/ardour/test/playlist_layering_test.cc
+++ b/libs/ardour/test/playlist_layering_test.cc
@@ -83,6 +83,7 @@ void
 PlaylistLayeringTest::tearDown ()
 {
 	AudioEngine::instance()->remove_session ();
+	delete _session;
 	EnumWriter::destroy ();
 	MIDI::Manager::destroy ();
 	AudioEngine::destroy ();