diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 8362bab32fa..0e6ecdd4a66 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -64,7 +64,7 @@ cask :v1 => 'unity' do
 end
 ```
 
-And here is one for `Firefox.app`. Note that it has an unversioned download (the download `url` does not contain the version number, unlike the example above). It also suppresses the checksum with `sha256 :no_check` (necessary since the checksum will change when a new distribution is made available). This combination of `version :latest` and `sha256 :no_check` is currently the preferred mechanism when an unversioned download URL is available:
+And here is one for `Firefox.app`. Note that it has an unversioned download (the download `url` does not contain the version number, unlike the example above). It also suppresses the checksum with `sha256 :no_check` (necessary since the checksum will change when a new distribution is made available). This combination of `version :latest` and `sha256 :no_check` is currently the preferred mechanism when a versioned download URL is not available:
 
 ```ruby
 cask :v1 => 'firefox' do