diff --git a/README.md b/README.md
index dcf0a4a8..fcc647cd 100644
--- a/README.md
+++ b/README.md
@@ -36,8 +36,9 @@ To make Dropbox work in your self-hosted app, [go to this Wiki page](https://git
 # Building
 
 The app can be built with grunt: `grunt` (html file will be in `dist/`).    
-Desktop apps are built with `grunt desktop`. This works only in mac osx as it builds dmg; requires wine.  
-To run Electron app without building installer, build the app with `grunt` and start in this way:
+Desktop apps are built with `grunt desktop`. This works only in macOS as it builds dmg; requires wine.  
+Also, a hardware token is required.  
+To run Electron app without building an installer, build the app with `grunt` and start in this way:
 ```bash
 $ grunt dev
 $ npm run-script electron