diff --git a/Library/Homebrew/test/test_formula_lock.rb b/Library/Homebrew/test/test_formula_lock.rb
index f3419a3151..1cc76d0a18 100644
--- a/Library/Homebrew/test/test_formula_lock.rb
+++ b/Library/Homebrew/test/test_formula_lock.rb
@@ -9,6 +9,7 @@ class FormulaLockTests < Homebrew::TestCase
 
   def teardown
     @lock.unlock
+    FormulaLock::LOCKDIR.children.each(&:unlink)
   end
 
   def test_locking_file_with_existing_lock_raises_error