diff --git a/Cargo.toml b/Cargo.toml
index d9040f1..a1986d0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,9 @@
 [package]
 name = "nish"
+description = "Jump into flake-based nix shells with ease"
 version = "0.1.0"
 edition = "2021"
+license = "MIT"
 
 [dependencies]
 clap = { version = "4.5.17", features = ["derive"] }
diff --git a/src/main.rs b/src/main.rs
index d680528..58b5a1e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -17,7 +17,7 @@ struct Args {
     /// <package> to implicitly use nixpkgs
     ///
     /// <flake#package> to use a different flake
-    #[arg(value_parser = preprocess)]
+    #[arg(value_parser = preprocess, required = true)]
     pkgs: Vec<Installable>,
 }