diff --git a/README.md b/README.md
index 78843db..a1044ab 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 ##### This project is complete for now.
 [![Build Status](https://travis-ci.com/Pierce01/MinecraftLauncher-core.svg?branch=master)](https://travis-ci.com/Pierce01/MinecraftLauncher-core)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
-![version](https://img.shields.io/badge/stable_version-3.13.0-blue)
+![version](https://img.shields.io/badge/stable_version-3.13.1-blue)
 ![badge](https://img.shields.io/badge/ncurses-not_supported-purple)
 
 MCLC (Minecraft Launcher Core) is a NodeJS solution for launching modded and vanilla Minecraft without having to download and format everything yourself.
diff --git a/components/handler.js b/components/handler.js
index 793e46f..2ad9fe7 100644
--- a/components/handler.js
+++ b/components/handler.js
@@ -514,7 +514,7 @@ class Handler {
                 '--proxyPass',
                 this.options.proxy.password
             );
-            if(this.options.customLaunchArgs) args.concat(this.options.customArgs)
+            if(this.options.customLaunchArgs) args.concat(this.options.customLaunchArgs)
             this.client.emit('debug', '[MCLC]: Set launch options');
             resolve(args);
         });
diff --git a/package.json b/package.json
index ac45410..f86118d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "minecraft-launcher-core",
-  "version": "3.13.0",
+  "version": "3.13.1",
   "description": "Lightweight module that downloads and runs Minecraft using javascript / NodeJS",
   "main": "index.js",
   "dependencies": {