diff --git a/gtk2_ardour/processor_box.cc b/gtk2_ardour/processor_box.cc
index ad3666c006..514d7ede13 100644
--- a/gtk2_ardour/processor_box.cc
+++ b/gtk2_ardour/processor_box.cc
@@ -715,7 +715,7 @@ ProcessorEntry::show_all_controls ()
 		(*i)->set_visible (true);
 	}
 
-	_parent->update_gui_object_state (this);
+	_parent->update_gui_object_state (this, true);
 }
 
 void
@@ -725,7 +725,7 @@ ProcessorEntry::hide_all_controls ()
 		(*i)->set_visible (false);
 	}
 
-	_parent->update_gui_object_state (this);
+	_parent->update_gui_object_state (this, true);
 }
 
 void
@@ -942,14 +942,14 @@ ProcessorEntry::toggle_inline_display_visibility ()
 	} else {
 		_plugin_display->show();
 	}
-	_parent->update_gui_object_state (this);
+	_parent->update_gui_object_state (this, true);
 }
 
 void
 ProcessorEntry::toggle_control_visibility (Control* c)
 {
 	c->set_visible (!c->visible ());
-	_parent->update_gui_object_state (this);
+	_parent->update_gui_object_state (this, true);
 }
 
 Menu*
@@ -4691,7 +4691,7 @@ ProcessorBox::entry_gui_object_state (ProcessorEntry* entry)
 }
 
 void
-ProcessorBox::update_gui_object_state (ProcessorEntry* entry)
+ProcessorBox::update_gui_object_state (ProcessorEntry* entry, bool emit)
 {
 	XMLNode* proc = entry_gui_object_state (entry);
 	if (!proc) {
@@ -4701,6 +4701,12 @@ ProcessorBox::update_gui_object_state (ProcessorEntry* entry)
 	/* XXX: this is a bit inefficient; we just remove all child nodes and re-add them */
 	proc->remove_nodes_and_delete (X_("Object"));
 	entry->add_control_state (proc);
+
+	/* notify other strips to update */
+	if (emit && _route) {
+		PBD::Unwinder<bool> uw (no_processor_redisplay, true);
+		_route->processors_changed (RouteProcessorChange ());
+	}
 }
 
 bool
diff --git a/gtk2_ardour/processor_box.h b/gtk2_ardour/processor_box.h
index 7e0b09b199..1391a99e6c 100644
--- a/gtk2_ardour/processor_box.h
+++ b/gtk2_ardour/processor_box.h
@@ -461,7 +461,7 @@ public:
 	void edit_processor (std::shared_ptr<ARDOUR::Processor>);
 	void generic_edit_processor (std::shared_ptr<ARDOUR::Processor>);
 
-	void update_gui_object_state (ProcessorEntry *);
+	void update_gui_object_state (ProcessorEntry *, bool emit = false);
 
 	sigc::signal<void,std::shared_ptr<ARDOUR::Processor> > ProcessorSelected;
 	sigc::signal<void,std::shared_ptr<ARDOUR::Processor> > ProcessorUnselected;