diff --git a/libs/ardour/ardour/amp.h b/libs/ardour/ardour/amp.h
index 82f93d312b..46dbdba227 100644
--- a/libs/ardour/ardour/amp.h
+++ b/libs/ardour/ardour/amp.h
@@ -81,6 +81,7 @@ public:
 			: AutomationControl (session, param, al, name)
 			, _amp (a) {
 			set_flags (Controllable::Flag (flags() | Controllable::GainLike));
+			alist()->reset_default (1.0);
 		}
 
 		void set_value (double val);
diff --git a/libs/ardour/plugin_insert.cc b/libs/ardour/plugin_insert.cc
index ba61e43e9c..a33dee2dbf 100644
--- a/libs/ardour/plugin_insert.cc
+++ b/libs/ardour/plugin_insert.cc
@@ -1155,7 +1155,11 @@ PluginInsert::PluginControl::PluginControl (PluginInsert* p, const Evoral::Param
 	, _plugin (p)
 {
 	Plugin::ParameterDescriptor desc;
-	p->plugin(0)->get_parameter_descriptor (param.id(), desc);
+	boost::shared_ptr<Plugin> plugin = p->plugin (0);
+	
+	alist()->reset_default (plugin->default_value (param.id()));
+
+	plugin->get_parameter_descriptor (param.id(), desc);
 	_logarithmic = desc.logarithmic;
 	_sr_dependent = desc.sr_dependent;
 	_toggled = desc.toggled;