diff --git a/lib/github/auth/key.rb b/lib/github/auth/key.rb
index 88b9da4..934a08a 100644
--- a/lib/github/auth/key.rb
+++ b/lib/github/auth/key.rb
@@ -1,3 +1,4 @@
+# :nodoc:
 module Github::Auth
   # Represents a username/key pair from GitHub
   Key = Struct.new(:username, :key) do