diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index 99ba30e834..69150b5c9c 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -12,6 +12,7 @@ require "utils"
 require "utils/bottles"
 require "utils/shebang"
 require "utils/shell"
+require "utils/git_repository"
 require "build_environment"
 require "build_options"
 require "formulary"