diff --git a/unispect.nix b/unispect.nix
index bcd0e68..66b4186 100644
--- a/unispect.nix
+++ b/unispect.nix
@@ -1,7 +1,7 @@
-with (import <nixpkgs> {});
+{ rustPlatform, ... }:
 rustPlatform.buildRustPackage {
-    pname = "unispect" ;
-    version = "0.1" ;
-    src = ./. ;
-    cargoLock = { lockFile = ./Cargo.lock ; } ;
+  pname = "unispect" ;
+  version = "0.1" ;
+  src = ./. ;
+  cargoLock = { lockFile = ./Cargo.lock ; } ;
 }