diff --git a/pkgs/by-name/ne/netcat-gnu/package.nix b/pkgs/by-name/ne/netcat-gnu/package.nix
index f072cf5d2133..00fdcbe54461 100644
--- a/pkgs/by-name/ne/netcat-gnu/package.nix
+++ b/pkgs/by-name/ne/netcat-gnu/package.nix
@@ -4,21 +4,21 @@
   fetchurl,
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "netcat-gnu";
   version = "0.7.1";
 
   src = fetchurl {
-    url = "mirror://sourceforge/netcat/netcat-${version}.tar.bz2";
-    sha256 = "1frjcdkhkpzk0f84hx6hmw5l0ynpmji8vcbaxg8h5k2svyxz0nmm";
+    url = "mirror://sourceforge/netcat/netcat-${finalAttrs.version}.tar.bz2";
+    hash = "sha256:1frjcdkhkpzk0f84hx6hmw5l0ynpmji8vcbaxg8h5k2svyxz0nmm";
   };
 
-  meta = with lib; {
+  meta = {
     description = "Utility which reads and writes data across network connections";
     homepage = "https://netcat.sourceforge.net/";
     mainProgram = "netcat";
-    license = licenses.gpl2Plus;
-    platforms = platforms.unix;
+    license = lib.licenses.gpl2Plus;
+    platforms = lib.platforms.unix;
     maintainers = with lib.maintainers; [ RossComputerGuy ];
   };
-}
+})