diff --git a/pkgs/tools/X11/xprintidle-ng/default.nix b/pkgs/tools/X11/xprintidle-ng/default.nix
index 117a612381f..4ae457dab4a 100644
--- a/pkgs/tools/X11/xprintidle-ng/default.nix
+++ b/pkgs/tools/X11/xprintidle-ng/default.nix
@@ -19,20 +19,18 @@ stdenv.mkDerivation rec {
       --replace "AC_PREREQ([2.62])" "AC_PREREQ([2.63])"
   '';
 
-  nativeBuildInputs = [ 
+  nativeBuildInputs = [
     autoconf automake gettext git gnulib
     help2man libtool perl pkgconfig texinfo
   ];
 
   configurePhase = ''
-    cp -r "${gnulib}" gnulib
-    chmod a+rX,u+w -R gnulib
-    ./bootstrap --gnulib-srcdir=gnulib
+    ./bootstrap --gnulib-srcdir=${gnulib}
     ./configure --prefix="$out"
   '';
 
   buildInputs = [
-    libX11 libXScrnSaver libXext  
+    libX11 libXScrnSaver libXext
   ];
 
   meta = {