diff --git a/gtk2_ardour/plugin_ui.cc b/gtk2_ardour/plugin_ui.cc
index 3f523a82d2..dcf89da4da 100644
--- a/gtk2_ardour/plugin_ui.cc
+++ b/gtk2_ardour/plugin_ui.cc
@@ -161,7 +161,9 @@ PluginUIWindow::PluginUIWindow (
 
 PluginUIWindow::~PluginUIWindow ()
 {
+#ifdef NDEBUG
 	cerr << "PluginWindow deleted for " << this << endl;
+#endif
 	delete _pluginui;
 }