diff --git a/Makefile b/Makefile
index 88536b2..4727f40 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # Copyright 2010 The Freetype-Go Authors. All rights reserved.
 # Use of this source code is governed by your choice of either the
-# FreeType License or the GNU General Public License version 2,
-# both of which can be found in the LICENSE file.
+# FreeType License or the GNU General Public License version 2 (or
+# any later version), both of which can be found in the LICENSE file.
 
 include $(GOROOT)/src/Make.$(GOARCH)
 
diff --git a/example/freetype/main.go b/example/freetype/main.go
index 012591e..f28d3cd 100644
--- a/example/freetype/main.go
+++ b/example/freetype/main.go
@@ -1,7 +1,7 @@
 // Copyright 2010 The Freetype-Go Authors. All rights reserved.
 // Use of this source code is governed by your choice of either the
-// FreeType License or the GNU General Public License version 2,
-// both of which can be found in the LICENSE file.
+// FreeType License or the GNU General Public License version 2 (or
+// any later version), both of which can be found in the LICENSE file.
 
 package main
 
diff --git a/example/gamma/main.go b/example/gamma/main.go
index 6c0d875..a86cd45 100644
--- a/example/gamma/main.go
+++ b/example/gamma/main.go
@@ -1,7 +1,7 @@
 // Copyright 2010 The Freetype-Go Authors. All rights reserved.
 // Use of this source code is governed by your choice of either the
-// FreeType License or the GNU General Public License version 2,
-// both of which can be found in the LICENSE file.
+// FreeType License or the GNU General Public License version 2 (or
+// any later version), both of which can be found in the LICENSE file.
 
 package main
 
diff --git a/example/raster/main.go b/example/raster/main.go
index f656c40..1506581 100644
--- a/example/raster/main.go
+++ b/example/raster/main.go
@@ -1,7 +1,7 @@
 // Copyright 2010 The Freetype-Go Authors. All rights reserved.
 // Use of this source code is governed by your choice of either the
-// FreeType License or the GNU General Public License version 2,
-// both of which can be found in the LICENSE file.
+// FreeType License or the GNU General Public License version 2 (or
+// any later version), both of which can be found in the LICENSE file.
 
 package main
 
diff --git a/example/round/main.go b/example/round/main.go
index e77a13d..2e66eed 100644
--- a/example/round/main.go
+++ b/example/round/main.go
@@ -1,7 +1,7 @@
 // Copyright 2010 The Freetype-Go Authors. All rights reserved.
 // Use of this source code is governed by your choice of either the
-// FreeType License or the GNU General Public License version 2,
-// both of which can be found in the LICENSE file.
+// FreeType License or the GNU General Public License version 2 (or
+// any later version), both of which can be found in the LICENSE file.
 
 // This program visualizes the quadratic approximation to the circle, used to
 // implement round joins when stroking paths. The approximation is used in the
diff --git a/example/truetype/main.go b/example/truetype/main.go
index 53ddada..c6cf935 100644
--- a/example/truetype/main.go
+++ b/example/truetype/main.go
@@ -1,7 +1,7 @@
 // Copyright 2010 The Freetype-Go Authors. All rights reserved.
 // Use of this source code is governed by your choice of either the
-// FreeType License or the GNU General Public License version 2,
-// both of which can be found in the LICENSE file.
+// FreeType License or the GNU General Public License version 2 (or
+// any later version), both of which can be found in the LICENSE file.
 
 package main
 
diff --git a/freetype/Makefile b/freetype/Makefile
index 054cd3f..2981b78 100644
--- a/freetype/Makefile
+++ b/freetype/Makefile
@@ -1,7 +1,7 @@
 # Copyright 2010 The Freetype-Go Authors. All rights reserved.
 # Use of this source code is governed by your choice of either the
-# FreeType License or the GNU General Public License version 2,
-# both of which can be found in the LICENSE file.
+# FreeType License or the GNU General Public License version 2 (or
+# any later version), both of which can be found in the LICENSE file.
 
 include $(GOROOT)/src/Make.$(GOARCH)
 
diff --git a/freetype/freetype.go b/freetype/freetype.go
index 31f95d6..4cda0b3 100644
--- a/freetype/freetype.go
+++ b/freetype/freetype.go
@@ -1,7 +1,7 @@
 // Copyright 2010 The Freetype-Go Authors. All rights reserved.
 // Use of this source code is governed by your choice of either the
-// FreeType License or the GNU General Public License version 2,
-// both of which can be found in the LICENSE file.
+// FreeType License or the GNU General Public License version 2 (or
+// any later version), both of which can be found in the LICENSE file.
 
 // The freetype package provides a convenient API to draw text onto an image.
 // Use the freetype/raster and freetype/truetype packages for lower level
diff --git a/freetype/raster/Makefile b/freetype/raster/Makefile
index cf393ab..6f1fc96 100644
--- a/freetype/raster/Makefile
+++ b/freetype/raster/Makefile
@@ -1,7 +1,7 @@
 # Copyright 2010 The Freetype-Go Authors. All rights reserved.
 # Use of this source code is governed by your choice of either the
-# FreeType License or the GNU General Public License version 2,
-# both of which can be found in the LICENSE file.
+# FreeType License or the GNU General Public License version 2 (or
+# any later version), both of which can be found in the LICENSE file.
 
 include $(GOROOT)/src/Make.$(GOARCH)
 
diff --git a/freetype/raster/geom.go b/freetype/raster/geom.go
index 0ddba81..87b89c5 100644
--- a/freetype/raster/geom.go
+++ b/freetype/raster/geom.go
@@ -1,7 +1,7 @@
 // Copyright 2010 The Freetype-Go Authors. All rights reserved.
 // Use of this source code is governed by your choice of either the
-// FreeType License or the GNU General Public License version 2,
-// both of which can be found in the LICENSE file.
+// FreeType License or the GNU General Public License version 2 (or
+// any later version), both of which can be found in the LICENSE file.
 
 package raster
 
diff --git a/freetype/raster/paint.go b/freetype/raster/paint.go
index 4f89f62..beac34c 100644
--- a/freetype/raster/paint.go
+++ b/freetype/raster/paint.go
@@ -1,7 +1,7 @@
 // Copyright 2010 The Freetype-Go Authors. All rights reserved.
 // Use of this source code is governed by your choice of either the
-// FreeType License or the GNU General Public License version 2,
-// both of which can be found in the LICENSE file.
+// FreeType License or the GNU General Public License version 2 (or
+// any later version), both of which can be found in the LICENSE file.
 
 package raster
 
diff --git a/freetype/raster/raster.go b/freetype/raster/raster.go
index 900e262..90b57b7 100644
--- a/freetype/raster/raster.go
+++ b/freetype/raster/raster.go
@@ -1,7 +1,7 @@
 // Copyright 2010 The Freetype-Go Authors. All rights reserved.
 // Use of this source code is governed by your choice of either the
-// FreeType License or the GNU General Public License version 2,
-// both of which can be found in the LICENSE file.
+// FreeType License or the GNU General Public License version 2 (or
+// any later version), both of which can be found in the LICENSE file.
 
 // The raster package provides an anti-aliasing 2-D rasterizer.
 //
diff --git a/freetype/truetype/Makefile b/freetype/truetype/Makefile
index 4a8bcb6..eadcd7c 100644
--- a/freetype/truetype/Makefile
+++ b/freetype/truetype/Makefile
@@ -1,7 +1,7 @@
 # Copyright 2010 The Freetype-Go Authors. All rights reserved.
 # Use of this source code is governed by your choice of either the
-# FreeType License or the GNU General Public License version 2,
-# both of which can be found in the LICENSE file.
+# FreeType License or the GNU General Public License version 2 (or
+# any later version), both of which can be found in the LICENSE file.
 
 include $(GOROOT)/src/Make.$(GOARCH)
 
diff --git a/freetype/truetype/truetype.go b/freetype/truetype/truetype.go
index 4df4490..d1eecde 100644
--- a/freetype/truetype/truetype.go
+++ b/freetype/truetype/truetype.go
@@ -1,7 +1,7 @@
 // Copyright 2010 The Freetype-Go Authors. All rights reserved.
 // Use of this source code is governed by your choice of either the
-// FreeType License or the GNU General Public License version 2,
-// both of which can be found in the LICENSE file.
+// FreeType License or the GNU General Public License version 2 (or
+// any later version), both of which can be found in the LICENSE file.
 
 // The truetype package provides a parser for the TTF file format. That format
 // is documented at http://developer.apple.com/fonts/TTRefMan/ and