1 files changed, 2 insertions, 9 deletions
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-1-4.js b/test/built-ins/Object/defineProperty/15.2.3.6-1-4.js
index 3c3292f3b..2f0f77464 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-1-4.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-1-4.js
@@ -6,15 +6,8 @@ es5id: 15.2.3.6-1-4
 description: >
     Object.defineProperty applied to string primitive throws a
     TypeError
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
-        try {
+assert.throws(TypeError, function() {
             Object.defineProperty("hello\nworld\\!", "foo", {});
-            return false;
-        } catch (e) {
-            return e instanceof TypeError;
-        }
-    }
-runTestCase(testcase);
+});