diff --git a/README.md b/README.md
index 6700017..6b4d421 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ Github Action to deploy an app to a [CapRover](https://caprover.com) server.
 ## Required Parameters
 - **server**: CapRover admin panel URL (Example: `https://captain.root.domain.com`).
 - **password**: CapRover admin password. Use GitHub Secrets (`${{ secrets.CAPROVER_PASSWORD }}`) for better security.
-- **app-name**: App on the CapRover server that you want to deploy to.
+- **app_name**: App on the CapRover server that you want to deploy to.
 - One of:
   - **branch**: will be deployed onto the app.
   - **tarball**: `.tar` file that will be deployed onto the app.