diff --git a/array_test.go b/array_test.go
index b228387..4da3ba1 100644
--- a/array_test.go
+++ b/array_test.go
@@ -40,6 +40,16 @@ func TestArray(t *testing.T) {
         abc.length = 2;
         abc;
     `, "0,1")
+
+	test(`
+        Object.defineProperty(Array.prototype, "0", {
+            value: 100,
+            writable: false,
+            configurable: true
+        });
+        abc = [101];
+        abc.hasOwnProperty("0") && abc[0] === 101;
+    `, "true")
 }
 
 func TestArray_toString(t *testing.T) {
diff --git a/global.go b/global.go
index a8c0c07..3aee317 100644
--- a/global.go
+++ b/global.go
@@ -781,7 +781,7 @@ func (runtime *_runtime) newArray(length uint32) *_object {
 func (runtime *_runtime) newArrayOf(valueArray []Value) *_object {
 	self := runtime.newArray(uint32(len(valueArray)))
 	for index, value := range valueArray {
-		self.put(strconv.FormatInt(int64(index), 10), value, false)
+		self.defineProperty(strconv.FormatInt(int64(index), 10), value, 0111, false)
 	}
 	return self
 }
diff --git a/object_class.go b/object_class.go
index 02d4675..bb11e0b 100644
--- a/object_class.go
+++ b/object_class.go
@@ -217,6 +217,7 @@ func objectPut(self *_object, name string, value Value, throw bool) {
 		typeErrorResult(throw)
 		return
 	}
+	// TODO This is not exacting to the specification
 	// TODO Shortcut?
 	property := self.getOwnProperty(name)
 	if property == nil {