diff --git a/pkgs/data/documentation/zeal/default.nix b/pkgs/data/documentation/zeal/default.nix
index 63fe26f069c7..9bca390f96e2 100644
--- a/pkgs/data/documentation/zeal/default.nix
+++ b/pkgs/data/documentation/zeal/default.nix
@@ -1,8 +1,8 @@
 { stdenv, fetchFromGitHub, cmake, extra-cmake-modules, pkgconfig
-, qtbase, qtimageformats, qtwebkit, qtx11extras
+, qtbase, qtimageformats, qtwebkit, qtx11extras, mkDerivation
 , libarchive, libXdmcp, libpthreadstubs, xcbutilkeysyms  }:
 
-stdenv.mkDerivation rec {
+mkDerivation rec {
   name = "zeal-${version}";
   version = "0.6.1";