diff --git a/README.md b/README.md
index defe28b..782e392 100644
--- a/README.md
+++ b/README.md
@@ -81,6 +81,7 @@ launcher.on('data', (e) => console.log(e));
 | `options.timeout`        | Integer  | Timeout on download requests.                                                             | False    |
 | `options.window.width`   | String   | Width of the Minecraft Client                                                             | False    |
 | `options.window.height`  | String   | Height of the Minecraft Client.                                                           | False    |
+| `options.window.fullscreen`  | Boolean| Fullscreen of the Minecraft Client.                                                     | False    |
 | `options.overrides`      | Object   | Json object redefining paths for better customization. Example below.                     | False    |
 | `options.overrides.minArgs`| Integer| The amount of launch arguments specified in the version file before it adds the default again| False    |
 ```js
diff --git a/components/handler.js b/components/handler.js
index 58bd03b..7d4808e 100644
--- a/components/handler.js
+++ b/components/handler.js
@@ -498,8 +498,8 @@ class Handler {
                     args[index] = fields[args[index]];
                 }
             }
-
-            if(this.options.window) args.push('--width', this.options.window.width, '--height', this.options.window.height);
+            
+            if(this.options.window) this.options.window.fullscreen ? args.push('--fullscreen') : args.push('--width', this.options.window.width, '--height', this.options.window.height);           
             if(this.options.server) args.push('--server', this.options.server.host, '--port', this.options.server.port || "25565");
             if(this.options.proxy) args.push(
                 '--proxyHost',