diff --git a/README.md b/README.md
index ea0281e..b84f40f 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 Expiration check
 ================
 
-Checks the expiration dates of domains et certificates.
+Checks the expiration dates of domains and certificates.
 
 Domain expiration check uses [`RDAP`](https://about.rdap.org/) and fallback with a `whois` request.
 
diff --git a/app.go b/app.go
index e6896d6..a39982f 100644
--- a/app.go
+++ b/app.go
@@ -36,6 +36,8 @@ func App() *cli.App {
 	}
 
 	return &cli.App{
+		Usage:    "Checks the expiration dates of domains and certificates",
+		HelpName: "expiration-check",
 		Commands: []*cli.Command{
 			{
 				Name:    "certificate",