diff --git a/gtk2_ardour/route_properties_box.cc b/gtk2_ardour/route_properties_box.cc
index 6ebf30a002..b5d9ee2c5a 100644
--- a/gtk2_ardour/route_properties_box.cc
+++ b/gtk2_ardour/route_properties_box.cc
@@ -127,7 +127,7 @@ RoutePropertiesBox::add_processor_to_display (std::weak_ptr<Processor> w)
 	}
 #ifdef MIXBUS
 	if (std::dynamic_pointer_cast<PluginInsert> (pib)->is_channelstrip ()) {
-		continue;
+		return;
 	}
 #endif
 	GenericPluginUI* plugin_ui = new GenericPluginUI (pib, true, true);