diff --git a/Casks/gdal-framework.rb b/Casks/gdal-framework.rb
index 6d98d509f..9ea1f9c7e 100644
--- a/Casks/gdal-framework.rb
+++ b/Casks/gdal-framework.rb
@@ -4,7 +4,7 @@ cask :v1 => 'gdal-framework' do
 
   url "http://www.kyngchaos.com/files/software/frameworks/GDAL_Complete-#{version.sub(%r{^(\d+\.\d+).*},'\1')}.dmg"
   homepage 'http://www.kyngchaos.com/software/frameworks'
-  license :unknown    # todo: improve this machine-generated value
+  license :unknown    # todo: change license and remove this comment; ':unknown' is a machine-generated placeholder
 
   pkg 'GDAL Complete.pkg'
   pkg 'Numpy.pkg'