diff --git a/pkgs/development/libraries/libxcomp/default.nix b/pkgs/development/libraries/libxcomp/default.nix
index 84dbb0c156f4..3a7ca70a85ff 100644
--- a/pkgs/development/libraries/libxcomp/default.nix
+++ b/pkgs/development/libraries/libxcomp/default.nix
@@ -5,8 +5,8 @@ stdenv.mkDerivation {
   name = "libxcomp-${version}";
 
   src = fetchurl {
-    url = "http://code.x2go.org/releases/source/nx-libs/nx-libs-${version}-full.tar.gz";
-    sha256 = "0a31508wyfyblf6plag2djr4spra5kylcmgg99h83c60ylxxnc11";
+    sha256 = "1hi3xrjzr37zs72djw3k7gj6mn2bsihfw1iysl8l0i85jl6sdfkd";
+    url = "http://code.x2go.org/releases/source/nx-libs/nx-libs-${version}-lite.tar.gz";
   };
 
   meta = with stdenv.lib; {
diff --git a/pkgs/tools/admin/nxproxy/default.nix b/pkgs/tools/admin/nxproxy/default.nix
index 151cd68fdbcd..6da78f60630c 100644
--- a/pkgs/tools/admin/nxproxy/default.nix
+++ b/pkgs/tools/admin/nxproxy/default.nix
@@ -5,8 +5,8 @@ stdenv.mkDerivation {
   name = "nxproxy-${version}";
 
   src = fetchurl {
-    url = "http://code.x2go.org/releases/source/nx-libs/nx-libs-${version}-full.tar.gz";
-    sha256 = "0a31508wyfyblf6plag2djr4spra5kylcmgg99h83c60ylxxnc11";
+    sha256 = "1hi3xrjzr37zs72djw3k7gj6mn2bsihfw1iysl8l0i85jl6sdfkd";
+    url = "http://code.x2go.org/releases/source/nx-libs/nx-libs-${version}-lite.tar.gz";
   };
 
   meta = with stdenv.lib; {
@@ -24,4 +24,6 @@ stdenv.mkDerivation {
   '';
 
   makeFlags = [ "exec_prefix=$(out)" ];
+
+  enableParallelBuilding = true;
 }