diff --git a/pkgs/tools/compression/upx/default.nix b/pkgs/tools/compression/upx/default.nix
index 900d13a66f78..c3fd01d5c88b 100644
--- a/pkgs/tools/compression/upx/default.nix
+++ b/pkgs/tools/compression/upx/default.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchurl, ucl, zlib, xz}:
+{stdenv, fetchurl, ucl, zlib}:
 
 stdenv.mkDerivation {
   name = "upx-3.07";