diff --git a/YantraJS.Core.Tests/ClrObjects/DisposableTests.cs b/YantraJS.Core.Tests/ClrObjects/DisposableTests.cs
index 1fb5c9e4..7cd54cd9 100644
--- a/YantraJS.Core.Tests/ClrObjects/DisposableTests.cs
+++ b/YantraJS.Core.Tests/ClrObjects/DisposableTests.cs
@@ -80,6 +80,7 @@ public void FieldAccess()
             JSValue guidTypeValue = ClrType.From(typeof(Guid));
             c["guid"] = guidTypeValue;
             string result = c.Eval("guid.empty.toString()").ToString();
+            Assert.AreEqual("00000000-0000-0000-0000-000000000000", result);
         }
 
         // [TestMethod]
diff --git a/YantraJS.Core/Core/Clr/ClrType.cs b/YantraJS.Core/Core/Clr/ClrType.cs
index 87baac57..401fbdfc 100644
--- a/YantraJS.Core/Core/Clr/ClrType.cs
+++ b/YantraJS.Core/Core/Clr/ClrType.cs
@@ -19,6 +19,7 @@
 using System.ComponentModel;
 using YantraJS.Expressions;
 using YantraJS.Generator;
+using YantraJS.Core.Core.Clr;
 
 namespace YantraJS.Core.Clr
 {