diff --git a/pkgs/development/libraries/soqt/default.nix b/pkgs/development/libraries/soqt/default.nix
index f5a7724c506..60b148f870e 100644
--- a/pkgs/development/libraries/soqt/default.nix
+++ b/pkgs/development/libraries/soqt/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, stdenv, coin3d, qt4 }:
+{ fetchurl, stdenv, coin3d, qt4, pkgconfig }:
 
 stdenv.mkDerivation rec {
   name = "soqt-${version}";
@@ -11,6 +11,8 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ coin3d qt4 ];
 
+  buildNativeInputs = [ pkgconfig ];
+
   meta = {
     homepage = http://www.coin3d.org/;
     license = "GPLv2+";
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 8936f6fd700..2d14d943567 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4631,6 +4631,8 @@ let
     qt4 = qt47;
   };
 
+  soqtQt48 = soqt.override { qt4 = qt48; };
+
   speechd = callPackage ../development/libraries/speechd { };
 
   speech_tools = callPackage ../development/libraries/speech-tools {};