diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index 9e7bd21cabf11f996c22f12997ad944d19851354..7e25fedd1b739fdb3f9a25bd72893c2065f59e44 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -3,6 +3,7 @@ require "formula_lock"
 require "formula_pin"
 require "hardware"
 require "utils/bottles"
+require "utils/shell"
 require "build_environment"
 require "build_options"
 require "formulary"
@@ -41,6 +42,7 @@ require "migrator"
 class Formula
   include FileUtils
   include Utils::Inreplace
+  include Utils::Shell
   extend Enumerable
 
   # @!method inreplace(paths, before = nil, after = nil)