diff --git a/src/core/Note.cpp b/src/core/Note.cpp
index 69497d22a33..674a150eda2 100644
--- a/src/core/Note.cpp
+++ b/src/core/Note.cpp
@@ -115,7 +115,7 @@ void Note::setPos( const MidiTime & pos )
 
 void Note::setKey( const int key )
 {
-	const int k = qBound( 0, key, NumKeys );
+	const int k = qBound( 0, key, NumKeys - 1 );
 	m_key = k;
 }