diff --git a/Cargo.lock b/Cargo.lock
index 7739484..abab95f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -179,7 +179,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
 [[package]]
-name = "nnpdt"
+name = "nix-diff"
 version = "0.1.0"
 dependencies = [
  "clap",
diff --git a/Cargo.toml b/Cargo.toml
index 0210c4e..940a573 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "nnpdt"
+name = "nix-diff"
 version = "0.1.0"
 edition = "2024"
 
diff --git a/README.md b/README.md
index 6dea449..1c52ab2 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
-# Nix not Python diff tool
+# nix-diff
+
+## diff nix system closures
 
 ## Usage
 
-`nnpdt /nix/var/profiles/system-<version>-link /run/current-system`
+`nix-diff /nix/var/profiles/system-<version>-link /run/current-system`