diff --git a/libs/evoral/evoral/Sequence.hpp b/libs/evoral/evoral/Sequence.hpp
index a5e95de1be..dd5dd17e19 100644
--- a/libs/evoral/evoral/Sequence.hpp
+++ b/libs/evoral/evoral/Sequence.hpp
@@ -183,7 +183,7 @@ public:
 	OverlapPitchResolution overlap_pitch_resolution() const { return _overlap_pitch_resolution; }
 	void set_overlap_pitch_resolution(OverlapPitchResolution opr);
 
-	void set_notes (const Sequence<Time>::Notes& n);
+	void set_notes (const typename Sequence<Time>::Notes& n);
 
 	typedef boost::shared_ptr< Event<Time> > SysExPtr;
 	typedef boost::shared_ptr<const Event<Time> > constSysExPtr;