diff --git a/fml/common/cpw/mods/fml/relauncher/FMLRelauncher.java b/fml/common/cpw/mods/fml/relauncher/FMLRelauncher.java
index a3750ce71b..a0e409a227 100644
--- a/fml/common/cpw/mods/fml/relauncher/FMLRelauncher.java
+++ b/fml/common/cpw/mods/fml/relauncher/FMLRelauncher.java
@@ -228,7 +228,8 @@ public class FMLRelauncher
             newApplet = appletClass.newInstance();
             Object appletContainer = ReflectionHelper.getPrivateValue(ReflectionHelper.getClass(getClass().getClassLoader(), "java.awt.Component"), minecraftApplet, "parent");
 
-            Class<? super Object> launcherClass = ReflectionHelper.getClass(getClass().getClassLoader(), "net.minecraft.Launcher");
+            String launcherClassName = System.getProperty("minecraft.applet.WrapperClass", "net.minecraft.Launcher");
+            Class<? super Object> launcherClass = ReflectionHelper.getClass(getClass().getClassLoader(), launcherClassName);
             if (launcherClass.isInstance(appletContainer))
             {
                 ReflectionHelper.findMethod(ReflectionHelper.getClass(getClass().getClassLoader(), "java.awt.Container"), minecraftApplet, new String[] { "removeAll" }).invoke(appletContainer);
@@ -236,7 +237,7 @@ public class FMLRelauncher
             }
             else
             {
-                FMLRelaunchLog.severe("Found unknown applet parent %s, unable to inject!\n", launcherClass);
+                FMLRelaunchLog.severe("Found unknown applet parent %s, unable to inject!\n", appletContainer.getClass().getName());
                 throw new RuntimeException();
             }
         }