diff --git a/Library/Homebrew/completions.rb b/Library/Homebrew/completions.rb
index f0d04baf97..1d30f2a57a 100644
--- a/Library/Homebrew/completions.rb
+++ b/Library/Homebrew/completions.rb
@@ -129,8 +129,6 @@ module Homebrew
 
     sig { params(command: String).returns(T::Boolean) }
     def command_gets_completions?(command)
-      return false if command.start_with? "cask " # TODO: (2.8) remove when `brew cask` commands are removed
-
       command_options(command).any?
     end