diff --git a/Library/Homebrew/dev-cmd/irb.rb b/Library/Homebrew/dev-cmd/irb.rb
index 6ab1a14ce6..2ba4d7781f 100644
--- a/Library/Homebrew/dev-cmd/irb.rb
+++ b/Library/Homebrew/dev-cmd/irb.rb
@@ -34,8 +34,6 @@ module Homebrew
       switch "--pry",
              env:         :pry,
              description: "Use Pry instead of IRB. Implied if `HOMEBREW_PRY` is set."
-
-      named_args :none
     end
   end