diff --git a/Library/Homebrew/aliases/alias.rb b/Library/Homebrew/aliases/alias.rb
index 4c93f88b7d..37e95d3e8a 100644
--- a/Library/Homebrew/aliases/alias.rb
+++ b/Library/Homebrew/aliases/alias.rb
@@ -1,6 +1,8 @@
 # typed: strict
 # frozen_string_literal: true
 
+require "fileutils"
+
 module Homebrew
   module Aliases
     class Alias