diff --git a/Sources/VLAppController.mm b/Sources/VLAppController.mm
index 714a8aa..c157cfc 100644
--- a/Sources/VLAppController.mm
+++ b/Sources/VLAppController.mm
@@ -5,7 +5,7 @@
 //
 //      (MN)    Matthias Neeracher
 //
-// Copyright © 2005-2007 Matthias Neeracher
+// Copyright © 2005-2011 Matthias Neeracher
 //
 
 #import "VLAppController.h"
diff --git a/Sources/VLLilypondWriter.cpp b/Sources/VLLilypondWriter.cpp
index 80aee42..b4b1e64 100644
--- a/Sources/VLLilypondWriter.cpp
+++ b/Sources/VLLilypondWriter.cpp
@@ -5,7 +5,7 @@
 //
 //      (MN)    Matthias Neeracher
 //
-// Copyright © 2007 Matthias Neeracher
+// Copyright © 2007-2011 Matthias Neeracher
 //
 
 #include "VLLilypondWriter.h"
diff --git a/Sources/VLMIDIWriter.cpp b/Sources/VLMIDIWriter.cpp
index 76b3da6..2910993 100644
--- a/Sources/VLMIDIWriter.cpp
+++ b/Sources/VLMIDIWriter.cpp
@@ -5,7 +5,7 @@
 //
 //      (MN)    Matthias Neeracher
 //
-// Copyright © 2008 Matthias Neeracher
+// Copyright © 2008-2011 Matthias Neeracher
 //
 
 #include "VLMIDIWriter.h"
diff --git a/Sources/VLMIDIWriter.h b/Sources/VLMIDIWriter.h
index 5d93c24..a1dbde3 100644
--- a/Sources/VLMIDIWriter.h
+++ b/Sources/VLMIDIWriter.h
@@ -5,7 +5,7 @@
 //
 //      (MN)    Matthias Neeracher
 //
-// Copyright © 2008 Matthias Neeracher
+// Copyright © 2008-2011 Matthias Neeracher
 //
 
 #include "VLModel.h"
diff --git a/Sources/VLModel.cpp b/Sources/VLModel.cpp
index 18fda76..506e23a 100644
--- a/Sources/VLModel.cpp
+++ b/Sources/VLModel.cpp
@@ -5,7 +5,7 @@
 //
 //      (MN)    Matthias Neeracher
 //
-// Copyright © 2005-2008 Matthias Neeracher
+// Copyright © 2005-2011 Matthias Neeracher
 //
 
 #include "VLModel.h"
diff --git a/Sources/VLModel.h b/Sources/VLModel.h
index 778af7d..046633f 100644
--- a/Sources/VLModel.h
+++ b/Sources/VLModel.h
@@ -5,7 +5,7 @@
 //
 //      (MN)    Matthias Neeracher
 //
-// Copyright © 2005-2008 Matthias Neeracher
+// Copyright © 2005-2011 Matthias Neeracher
 //
 
 #include <list>
diff --git a/Sources/VLSheetViewNotes.h b/Sources/VLSheetViewNotes.h
index 156fe77..aa9312d 100644
--- a/Sources/VLSheetViewNotes.h
+++ b/Sources/VLSheetViewNotes.h
@@ -5,7 +5,7 @@
 //
 //      (MN)    Matthias Neeracher
 //
-// Copyright © 2005-2007 Matthias Neeracher
+// Copyright © 2005-2011 Matthias Neeracher
 //
 
 #import <Cocoa/Cocoa.h>
diff --git a/Sources/VLSheetViewNotes.mm b/Sources/VLSheetViewNotes.mm
index e8eceb0..d4496c9 100644
--- a/Sources/VLSheetViewNotes.mm
+++ b/Sources/VLSheetViewNotes.mm
@@ -5,7 +5,7 @@
 //
 //      (MN)    Matthias Neeracher
 //
-// Copyright © 2005-2008 Matthias Neeracher
+// Copyright © 2005-2011 Matthias Neeracher
 //
 
 #import "VLSheetView.h"