diff --git a/libs/ardour/ardour/region_fx_plugin.h b/libs/ardour/ardour/region_fx_plugin.h
index 10809b5547..74f28cf43f 100644
--- a/libs/ardour/ardour/region_fx_plugin.h
+++ b/libs/ardour/ardour/region_fx_plugin.h
@@ -155,6 +155,10 @@ public:
 		return _required_buffers;
 	}
 
+	/* wrapped Plugin API */
+	PBD::Signal0<void> TailChanged;
+	samplecnt_t effective_tail () const;
+
 private:
 	/* disallow copy construction */
 	RegionFxPlugin (RegionFxPlugin const&);
diff --git a/libs/ardour/audioregion.cc b/libs/ardour/audioregion.cc
index 55cdccd52b..ffec0b9b54 100644
--- a/libs/ardour/audioregion.cc
+++ b/libs/ardour/audioregion.cc
@@ -2483,7 +2483,7 @@ AudioRegion::_add_plugin (std::shared_ptr<RegionFxPlugin> rfx, std::shared_ptr<R
 	}
 
 	rfx->LatencyChanged.connect_same_thread (*this, boost::bind (&AudioRegion::fx_latency_changed, this, false));
-	rfx->plugin()->TailChanged.connect_same_thread (*this, boost::bind (&AudioRegion::fx_tail_changed, this, false));
+	rfx->TailChanged.connect_same_thread (*this, boost::bind (&AudioRegion::fx_tail_changed, this, false));
 	rfx->set_block_size (_session.get_block_size ());
 
 	if (from_set_state) {
@@ -2570,7 +2570,7 @@ AudioRegion::fx_tail_changed (bool no_emit)
 {
 	uint32_t t = 0;
 	for (auto const& rfx : _plugins) {
-		t = max<uint32_t> (t, rfx->plugin()->effective_tail ());
+		t = max<uint32_t> (t, rfx->effective_tail ());
 	}
 	if (t == _fx_tail) {
 		return;
diff --git a/libs/ardour/region_fx_plugin.cc b/libs/ardour/region_fx_plugin.cc
index a61aee9290..b069cdf259 100644
--- a/libs/ardour/region_fx_plugin.cc
+++ b/libs/ardour/region_fx_plugin.cc
@@ -390,6 +390,7 @@ RegionFxPlugin::add_plugin (std::shared_ptr<Plugin> plugin)
 		plugin->ParameterChangedExternally.connect_same_thread (*this, boost::bind (&RegionFxPlugin::parameter_changed_externally, this, _1, _2));
 		plugin->StartTouch.connect_same_thread (*this, boost::bind (&RegionFxPlugin::start_touch, this, _1));
 		plugin->EndTouch.connect_same_thread (*this, boost::bind (&RegionFxPlugin::end_touch, this, _1));
+		plugin->TailChanged.connect_same_thread (*this, [this](){ TailChanged (); });
 	}
 
 	plugin->set_insert (this, _plugins.size ());
@@ -466,6 +467,12 @@ RegionFxPlugin::signal_latency () const
 	return _plugins.front ()->signal_latency ();
 }
 
+ARDOUR::samplecnt_t
+RegionFxPlugin::effective_tail () const
+{
+	return _plugins.front ()->effective_tail ();
+}
+
 PlugInsertBase::UIElements
 RegionFxPlugin::ui_elements () const
 {