diff --git a/lib/test.js b/lib/test.js
index 37a81e00..e582b876 100644
--- a/lib/test.js
+++ b/lib/test.js
@@ -553,7 +553,7 @@ Test.prototype['throws'] = function (fn, expected, msg, extra) {
     var passed = caught;
 
     if (isRegExp(expected)) {
-        passed = expected.test(caught && caught.error);
+        passed = $test(expected, caught && caught.error);
         expected = String(expected);
     }