diff --git a/Library/Homebrew/test/test_formula_validation.rb b/Library/Homebrew/test/test_formula_validation.rb
index c01d2fc9e6..127416780b 100644
--- a/Library/Homebrew/test/test_formula_validation.rb
+++ b/Library/Homebrew/test/test_formula_validation.rb
@@ -9,7 +9,7 @@ class FormulaValidationTests < Test::Unit::TestCase
 
   def test_cant_override_brew
     e = assert_raises(RuntimeError) { Class.new(Formula) { def brew; end } }
-    assert_equal "You cannot override Formula#brew", e.message
+    assert_match /You cannot override Formula#brew/, e.message
   end
 
   def test_validates_name