diff --git a/src/main/java/com/woinject/WOInject.java b/src/main/java/com/woinject/WOInject.java
index bce7472..07d4b4f 100644
--- a/src/main/java/com/woinject/WOInject.java
+++ b/src/main/java/com/woinject/WOInject.java
@@ -18,11 +18,14 @@
 import java.security.AccessController;
 import java.security.PrivilegedAction;
 
+import javassist.ClassClassPath;
 import javassist.ClassPool;
 import javassist.CtClass;
 import javassist.CtMethod;
 import javassist.Loader;
 
+import com.webobjects.foundation._NSUtilities;
+
 /**
  * The <code>WOInject</code> class initializes the application intercepting core
  * methods used by WebObjects classes to create objects.
@@ -54,6 +57,8 @@ public class WOInject {
     public static void init(String applicationClass, String[] args) {
 	final ClassPool pool = ClassPool.getDefault();
 
+	pool.insertClassPath(new ClassClassPath(_NSUtilities.class));
+
 	Loader loader = AccessController.doPrivileged(new PrivilegedAction<Loader>() {
 	    public Loader run() {
 		return new Loader(pool);