diff --git a/pkgs/development/python-modules/pyside/apiextractor.nix b/pkgs/development/python-modules/pyside/apiextractor.nix
index 452320e1d71..07ddfb69fa0 100644
--- a/pkgs/development/python-modules/pyside/apiextractor.nix
+++ b/pkgs/development/python-modules/pyside/apiextractor.nix
@@ -1,8 +1,8 @@
-{ stdenv, fetchurl, cmake, libxml2, libxslt, python2, qt4 }:
+{ stdenv, fetchurl, cmake, libxml2, libxslt, python3, qt4 }:
 
 # This derivation does not provide any Python module and should therefore be called via `all-packages.nix`.
 let
-  pythonEnv = python2.withPackages(ps: with ps; [  sphinx ]);
+  pythonEnv = python3.withPackages(ps: with ps; [  sphinx ]);
 in stdenv.mkDerivation {
   name = "pyside-apiextractor-0.10.10";
 
@@ -13,7 +13,14 @@ in stdenv.mkDerivation {
 
   enableParallelBuilding = true;
 
-  buildInputs = [ cmake qt4 pythonEnv libxml2 libxslt ];
+  outputs = [ "out" "dev" ];
+
+  preConfigure = ''
+    cmakeFlagsArray=("-DCMAKE_INSTALL_PREFIX=$dev")
+  '';
+
+  nativeBuildInputs = [ cmake pythonEnv ];
+  buildInputs = [ qt4 libxml2 libxslt ];
 
   meta = {
     description = "Eases the development of bindings of Qt-based libraries for high level languages by automating most of the process";
diff --git a/pkgs/development/python-modules/pyside/default.nix b/pkgs/development/python-modules/pyside/default.nix
index 8eae5034a4f..2bbeb7a1233 100644
--- a/pkgs/development/python-modules/pyside/default.nix
+++ b/pkgs/development/python-modules/pyside/default.nix
@@ -13,6 +13,12 @@ buildPythonPackage rec {
 
   enableParallelBuilding = true;
 
+  outputs = [ "out" "dev" ];
+
+  preConfigure = ''
+    cmakeFlagsArray=("-DCMAKE_INSTALL_PREFIX=$dev")
+  '';
+
   nativeBuildInputs = [ cmake pysideGeneratorrunner pysideShiboken qt4 ];
 
   buildInputs = [ mesa libGL ];
diff --git a/pkgs/development/python-modules/pyside/generatorrunner.nix b/pkgs/development/python-modules/pyside/generatorrunner.nix
index 7cb132c1ad7..8fc505a89fc 100644
--- a/pkgs/development/python-modules/pyside/generatorrunner.nix
+++ b/pkgs/development/python-modules/pyside/generatorrunner.nix
@@ -1,8 +1,8 @@
-{ stdenv, fetchurl, cmake, pysideApiextractor, python2, qt4 }:
+{ stdenv, fetchurl, cmake, pysideApiextractor, python3, qt4 }:
 
 # This derivation does not provide any Python module and should therefore be called via `all-packages.nix`.
 let
-  pythonEnv = python2.withPackages(ps: with ps; [ sphinx ]);
+  pythonEnv = python3.withPackages(ps: with ps; [ sphinx ]);
   pname = "pyside-generatorrunner";
   version = "0.6.16";
 in stdenv.mkDerivation {
@@ -15,7 +15,14 @@ in stdenv.mkDerivation {
 
   enableParallelBuilding = true;
 
-  buildInputs = [ cmake pysideApiextractor qt4 pythonEnv ];
+  outputs = [ "out" "dev" ];
+
+  preConfigure = ''
+    cmakeFlagsArray=("-DCMAKE_INSTALL_PREFIX=$dev")
+  '';
+
+  nativeBuildInputs = [ cmake pythonEnv ];
+  buildInputs = [ pysideApiextractor qt4 ];
 
   meta = {
     description = "Eases the development of binding generators for C++ and Qt-based libraries by providing a framework to help automating most of the process";
diff --git a/pkgs/development/python-modules/pyside/shiboken.nix b/pkgs/development/python-modules/pyside/shiboken.nix
index b0c3368e070..cf7192f92ff 100644
--- a/pkgs/development/python-modules/pyside/shiboken.nix
+++ b/pkgs/development/python-modules/pyside/shiboken.nix
@@ -33,7 +33,10 @@ buildPythonPackage rec {
 
   buildInputs = [ python libxml2 libxslt ];
 
+  outputs = [ "out" "dev" ];
+
   preConfigure = ''
+    cmakeFlagsArray=("-DCMAKE_INSTALL_PREFIX=$dev")
     echo "preConfigure: Fixing shiboken_generator install target."
     substituteInPlace generator/CMakeLists.txt --replace \
       \"$\{GENERATORRUNNER_PLUGIN_DIR}\" lib/generatorrunner/
diff --git a/pkgs/development/python-modules/pyside/tools.nix b/pkgs/development/python-modules/pyside/tools.nix
index 9698c09f347..cc52a0502f2 100644
--- a/pkgs/development/python-modules/pyside/tools.nix
+++ b/pkgs/development/python-modules/pyside/tools.nix
@@ -12,6 +12,12 @@ buildPythonPackage rec {
     sha256 = "017i2yxgjrisaifxqnl3ym8ijl63l2yl6a3474dsqhlyqz2nx2ll";
   };
 
+  outputs = [ "out" "dev" ];
+
+  preConfigure = ''
+    cmakeFlagsArray=("-DCMAKE_INSTALL_PREFIX=$dev")
+  '';
+
   nativeBuildInputs = [ cmake ];
 
   buildInputs = [ qt4 ];