diff --git a/pkg/setup/setup_source.go b/pkg/setup/setup_source.go
index ecc750e..dff0ffe 100644
--- a/pkg/setup/setup_source.go
+++ b/pkg/setup/setup_source.go
@@ -13,10 +13,10 @@ func PrintSetup(appId string) {
 	fmt.Println("🚀 Your new app has been created.")
 	fmt.Println("")
 	fmt.Println("React/Javascript: To create a brand new project in the current dir:")
-	ccmd.Printf("$ npx create-react-app --template @usecloudstate/usecloudstate-js . && sed -i 's/USECLOUDSTATE_APP_ID/%s/' src/utils/cloudstate.js\n", appId)
+	ccmd.Printf("$ npx create-react-app --template @usecloudstate/usecloudstate-js . && echo \"REACT_APP_CLOUD_STATE_APP_ID=%s\" >> .env\n", appId)
 	fmt.Println("")
 	fmt.Println("React/Typescript: To create a brand new project in the current dir:")
-	ccmd.Printf("$ npx create-react-app --template @usecloudstate/usecloudstate-ts . && sed -i 's/USECLOUDSTATE_APP_ID/%s/' src/utils/cloudstate.ts\n", appId)
+	ccmd.Printf("$ npx create-react-app --template @usecloudstate/usecloudstate-ts . && echo \"REACT_APP_CLOUD_STATE_APP_ID=%s\" >> .env\n", appId)
 	fmt.Println("")
 	fmt.Printf("More docs and admin console is available at: https://usecloudstate.io/admin/apps/%s/settings\n", appId)
 	fmt.Println("Happy coding! 👋")