diff --git a/README.md b/README.md
index 39f5a13..48fb98d 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ import USER_SETTINGS from 'settings/user_settings.json!';
 import * as SLICER from 'Doodle3D/Doodle3d-Slicer';
 
 var settings = new SLICER.Settings();
-settings.updateConfig(PRINTER_SETTINGS["ultimaker2go"]);
+settings.updateConfig(PRINTER_SETTINGS['ultimaker2go']);
 settings.updateConfig(USER_SETTINGS);
 
 var geometry = new THREE.TorusGeometry(20, 10, 30, 30);