diff --git a/Library/Homebrew/metafiles.rb b/Library/Homebrew/metafiles.rb
index 5b8cd0da05..ea2b525ee4 100644
--- a/Library/Homebrew/metafiles.rb
+++ b/Library/Homebrew/metafiles.rb
@@ -22,7 +22,7 @@ module Metafiles
 
   def copy?(file)
     file = file.downcase
-    return true if LICENSES.include? file.split(".").first
+    return true if LICENSES.include? file.split(/\.|-/).first
 
     ext  = File.extname(file)
     file = File.basename(file, ext) if EXTENSIONS.include?(ext)