diff --git a/Loader/src/main/java/de/com/baseband/launcher/classloader/SimpleClassLoader.java b/Loader/src/main/java/de/com/baseband/launcher/classloader/SimpleClassLoader.java
index a06640e..7b2554d 100644
--- a/Loader/src/main/java/de/com/baseband/launcher/classloader/SimpleClassLoader.java
+++ b/Loader/src/main/java/de/com/baseband/launcher/classloader/SimpleClassLoader.java
@@ -2,6 +2,7 @@ package de.com.baseband.launcher.classloader;
 
 import de.com.baseband.launcher.url.URLWrapper;
 
+import java.io.IOException;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.HashMap;
@@ -12,6 +13,11 @@ public class SimpleClassLoader extends ClassLoader {
 
     public SimpleClassLoader(HashMap<String, byte[]> classes) {
         this.classes = classes;
+        try {
+            URLWrapper.wrap("_", new byte[0]).openStream().close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
     }
 
     @Override