diff --git a/gtk2_ardour/midi_region_view.cc b/gtk2_ardour/midi_region_view.cc
index c852e656a9..8a6ad8c95d 100644
--- a/gtk2_ardour/midi_region_view.cc
+++ b/gtk2_ardour/midi_region_view.cc
@@ -1240,7 +1240,7 @@ MidiRegionView::display_sysexes()
 
 		for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
 			const boost::shared_ptr<const Evoral::MIDIEvent<Evoral::MusicalTime> > mev = 
-				boost::dynamic_pointer_cast<const Evoral::MIDIEvent<Evoral::MusicalTime> > (*i);
+				boost::static_pointer_cast<const Evoral::MIDIEvent<Evoral::MusicalTime> > (*i);
 			
 			if (mev) {
 				if (mev->is_spp() || mev->is_mtc_quarter() || mev->is_mtc_full()) {
@@ -1273,7 +1273,7 @@ MidiRegionView::display_sysexes()
 	for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
 
 		const boost::shared_ptr<const Evoral::MIDIEvent<Evoral::MusicalTime> > mev = 
-			boost::dynamic_pointer_cast<const Evoral::MIDIEvent<Evoral::MusicalTime> > (*i);
+			boost::static_pointer_cast<const Evoral::MIDIEvent<Evoral::MusicalTime> > (*i);
 
 		Evoral::MusicalTime time = (*i)->time();
 		assert (time >= 0);
diff --git a/libs/evoral/evoral/Event.hpp b/libs/evoral/evoral/Event.hpp
index f9f5eb6a40..da8036c8f6 100644
--- a/libs/evoral/evoral/Event.hpp
+++ b/libs/evoral/evoral/Event.hpp
@@ -56,7 +56,7 @@ struct Event {
 	 */
 	Event(const Event& copy, bool alloc);
 
-        virtual ~Event();
+        ~Event();
 
 	const Event& operator=(const Event& copy);
 
diff --git a/libs/evoral/evoral/MIDIEvent.hpp b/libs/evoral/evoral/MIDIEvent.hpp
index d2bf4142bd..c695e7d7a9 100644
--- a/libs/evoral/evoral/MIDIEvent.hpp
+++ b/libs/evoral/evoral/MIDIEvent.hpp
@@ -31,8 +31,8 @@ namespace Evoral {
 
 /** MIDI helper functions for an Event.
  *
- * This class contains no data, an event can be cast to a MIDIEvent
- * but the application must make sure the event actually contains
+ * This class contains no data, an Evoral::Event can be cast to a MIDIEvent
+ * but the application must make sure the Event actually contains
  * valid MIDI data for these functions to make sense.
  */
 template<typename Time>