diff --git a/LaunchServer/src/main/java/pro/gravit/launchserver/asm/ConfigGenerator.java b/LaunchServer/src/main/java/pro/gravit/launchserver/asm/ConfigGenerator.java
index c39ecc2a..cb6d9ee2 100644
--- a/LaunchServer/src/main/java/pro/gravit/launchserver/asm/ConfigGenerator.java
+++ b/LaunchServer/src/main/java/pro/gravit/launchserver/asm/ConfigGenerator.java
@@ -54,13 +54,14 @@ public void setByteArrayListField(String name, List<byte[]> b) {
         constructor.instructions.add(new InsnNode(Opcodes.DUP));
         constructor.instructions.add(new MethodInsnNode(Opcodes.INVOKESPECIAL, "java/util/ArrayList", "<init>", "()V"));
         for (byte[] value : b) {
-            constructor.instructions.add(new InsnNode(Opcodes.DUP));
+            constructor.instructions.add(new InsnNode(Opcodes.DUP)); // +1-1
             constructor.instructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "java/util/Base64", "getDecoder", "()Ljava/util/Base64$Decoder;", false));
             constructor.instructions.add(NodeUtils.getSafeStringInsnList(Base64.getEncoder().encodeToString(value)));
             constructor.instructions.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "java/util/Base64$Decoder", "decode", base64DecDesc, false));
-            constructor.instructions.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE, "java/util/List", "add", "(Ljava/lang/Object;)Z", false));
+            constructor.instructions.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE, "java/util/List", "add", "(Ljava/lang/Object;)Z", true));
             constructor.instructions.add(new InsnNode(Opcodes.POP));
         }
+        constructor.instructions.add(new InsnNode(Opcodes.POP)); // needs -1
         constructor.instructions.add(new FieldInsnNode(Opcodes.PUTFIELD, configclass.name, name, "Ljava/util/List;"));
     }