diff --git a/Library/Homebrew/dev-cmd/prof.rb b/Library/Homebrew/dev-cmd/prof.rb
index ac16a53b14..b8f485568f 100644
--- a/Library/Homebrew/dev-cmd/prof.rb
+++ b/Library/Homebrew/dev-cmd/prof.rb
@@ -2,6 +2,7 @@
 # frozen_string_literal: true
 
 require "abstract_command"
+require "fileutils"
 
 module Homebrew
   module DevCmd