diff --git a/README.md b/README.md
index 984996aa..58beec70 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ git clone https://github.com/mstarke/MacPass --recursive
 * Install all Dependencies
 ```bash
 cd MacPass
-carthage bootstrap --platform Mac
+carthage bootstrap --platform macOS
 ```
 After that you can build and run in Xcode. The following command will build and make the application available through Spotlight. If you run into signing issues take a look at [Issue #92](https://github.com/mstarke/MacPass/issues/92). Since Sparkle is disabled only on the CI build and in Debug mode, you have to explicitly disable it in Release. Otherwise warnings on unsecure updates will appear.