diff --git a/libs/ardour/plugin_insert.cc b/libs/ardour/plugin_insert.cc
index 1c3b027e52..d00129e9c5 100644
--- a/libs/ardour/plugin_insert.cc
+++ b/libs/ardour/plugin_insert.cc
@@ -256,6 +256,8 @@ PluginInsert::set_block_size (nframes_t nframes)
 void
 PluginInsert::activate ()
 {
+	Processor::activate ();
+	
 	for (Plugins::iterator i = _plugins.begin(); i != _plugins.end(); ++i) {
 		(*i)->activate ();
 	}
@@ -264,6 +266,8 @@ PluginInsert::activate ()
 void
 PluginInsert::deactivate ()
 {
+	Processor::deactivate ();
+	
 	for (Plugins::iterator i = _plugins.begin(); i != _plugins.end(); ++i) {
 		(*i)->deactivate ();
 	}