diff --git a/src/main/java/net/minecraft/launchwrapper/LaunchClassLoader.java b/src/main/java/net/minecraft/launchwrapper/LaunchClassLoader.java
index f4e83af..d3a6d7f 100644
--- a/src/main/java/net/minecraft/launchwrapper/LaunchClassLoader.java
+++ b/src/main/java/net/minecraft/launchwrapper/LaunchClassLoader.java
@@ -58,6 +58,12 @@ public class LaunchClassLoader extends URLClassLoader {
         addClassLoaderExclusion("org.apache.logging.");
         addClassLoaderExclusion("net.minecraft.launchwrapper.");
 
+        // classloader launcher exclusions
+        addClassLoaderExclusion("ru.gravit.launcher.");
+        addClassLoaderExclusion("com.mojang.");
+        addClassLoaderExclusion("com.google.gson.");
+        addClassLoaderExclusion("org.json.");
+
         // transformer exclusions
         addTransformerExclusion("javax.");
         addTransformerExclusion("argo.");
