diff --git a/Library/Homebrew/test/test_cmd_audit.rb b/Library/Homebrew/test/test_cmd_audit.rb
index 20df333baa..16c0426edf 100644
--- a/Library/Homebrew/test/test_cmd_audit.rb
+++ b/Library/Homebrew/test/test_cmd_audit.rb
@@ -216,6 +216,9 @@ class FormulaAuditorTests < Homebrew::TestCase
   end
 
   def test_audit_class_github_gist_formula
+    needs_compat
+    require "compat/formula_specialties"
+
     fa = formula_auditor "foo", <<-EOS.undent
       class Foo < GithubGistFormula
         url "http://example.com/foo-1.0.tgz"
@@ -227,6 +230,9 @@ class FormulaAuditorTests < Homebrew::TestCase
   end
 
   def test_audit_class_script_file_formula
+    needs_compat
+    require "compat/formula_specialties"
+
     fa = formula_auditor "foo", <<-EOS.undent
       class Foo < ScriptFileFormula
         url "http://example.com/foo-1.0.tgz"
@@ -238,6 +244,9 @@ class FormulaAuditorTests < Homebrew::TestCase
   end
 
   def test_audit_class_aws_formula
+    needs_compat
+    require "compat/formula_specialties"
+
     fa = formula_auditor "foo", <<-EOS.undent
       class Foo < AmazonWebServicesFormula
         url "http://example.com/foo-1.0.tgz"
diff --git a/Library/Homebrew/test/testing_env.rb b/Library/Homebrew/test/testing_env.rb
index bca841f7f3..2aaf20c3f0 100644
--- a/Library/Homebrew/test/testing_env.rb
+++ b/Library/Homebrew/test/testing_env.rb
@@ -93,6 +93,10 @@ module Homebrew
       Dir.mktmpdir(prefix_suffix, HOMEBREW_TEMP, &block)
     end
 
+    def needs_compat
+      skip "Requires compat/ code" if ENV["HOMEBREW_NO_COMPAT"]
+    end
+
     def assert_nothing_raised
       yield
     end