1 files changed, 6 insertions, 2 deletions
diff --git a/libs/ardour/ardour/midi_operator.h b/libs/ardour/ardour/midi_operator.h
index e3ed6aabfd..64ceaad841 100644
--- a/libs/ardour/ardour/midi_operator.h
+++ b/libs/ardour/ardour/midi_operator.h
@@ -26,14 +26,18 @@
 #include "evoral/types.hpp"
 #include "evoral/Sequence.hpp"
 
+class Command;
+
 namespace ARDOUR {
 
+class MidiModel;
+
 class MidiOperator {
   public:
-	MidiOperator() {}
+	MidiOperator () {}
 	virtual ~MidiOperator() {}
 	
-	virtual int operator() (std::vector<Evoral::Sequence<Evoral::MusicalTime>::Notes>&) = 0;
+	virtual Command* operator() (boost::shared_ptr<ARDOUR::MidiModel>, std::vector<Evoral::Sequence<Evoral::MusicalTime>::Notes>&) = 0;
 	virtual std::string name() const = 0;
 };