diff --git a/pkgs/by-name/ad/ada/package.nix b/pkgs/by-name/ad/ada/package.nix
index 6573c877313e..c367f080ea9c 100644
--- a/pkgs/by-name/ad/ada/package.nix
+++ b/pkgs/by-name/ad/ada/package.nix
@@ -3,7 +3,6 @@
   stdenv,
   fetchFromGitHub,
   cmake,
-  nix-update-script,
 }:
 
 stdenv.mkDerivation rec {