diff --git a/pkgs/development/libraries/polkit-qt-1/qt-4.nix b/pkgs/development/libraries/polkit-qt-1/qt-4.nix
new file mode 100644
index 00000000000..fa5c77aa27a
--- /dev/null
+++ b/pkgs/development/libraries/polkit-qt-1/qt-4.nix
@@ -0,0 +1,21 @@
+{ stdenv, fetchurl, cmake, pkgconfig, polkit, automoc4, glib, qt4 }:
+
+with stdenv.lib;
+
+stdenv.mkDerivation {
+  name = "polkit-qt-1-qt4-0.112.0";
+
+  src = fetchurl {
+    url = "mirror://kde/stable/apps/KDE4.x/admin/polkit-qt-1-0.112.0.tar.bz2";
+    sha256 = "1ip78x20hjqvm08kxhp6gb8hf6k5n6sxyx6kk2yvvq53djzh7yv7";
+  };
+
+  nativeBuildInputs = [ cmake pkgconfig automoc4 ];
+
+  propagatedBuildInputs = [ polkit glib qt4 ];
+
+  meta = {
+    description = "A Qt wrapper around PolKit";
+    maintainers = with stdenv.lib.maintainers; [ ttuegel ];
+  };
+}
diff --git a/pkgs/development/libraries/polkit-qt-1/default.nix b/pkgs/development/libraries/polkit-qt-1/qt-5.nix
similarity index 65%
rename from pkgs/development/libraries/polkit-qt-1/default.nix
rename to pkgs/development/libraries/polkit-qt-1/qt-5.nix
index dc28d1398bc..d9b2afbd801 100644
--- a/pkgs/development/libraries/polkit-qt-1/default.nix
+++ b/pkgs/development/libraries/polkit-qt-1/qt-5.nix
@@ -1,13 +1,9 @@
-{ stdenv, fetchurl, cmake, pkgconfig, polkit, automoc4, glib
-, qt4 ? null
-, withQt5 ? false, qtbase ? null }:
+{ stdenv, fetchurl, cmake, pkgconfig, polkit, glib, qtbase }:
 
 with stdenv.lib;
 
-assert (withQt5 -> qtbase != null); assert (!withQt5 -> qt4 != null);
-
 stdenv.mkDerivation {
-  name = "polkit-qt-1-0.112.0";
+  name = "polkit-qt-1-qt5-0.112.0";
 
   outputs = [ "dev" "out" ];
 
@@ -16,9 +12,9 @@ stdenv.mkDerivation {
     sha256 = "1ip78x20hjqvm08kxhp6gb8hf6k5n6sxyx6kk2yvvq53djzh7yv7";
   };
 
-  nativeBuildInputs = [ cmake pkgconfig ] ++ optional (!withQt5) automoc4;
+  nativeBuildInputs = [ cmake pkgconfig ];
 
-  propagatedBuildInputs = [ polkit glib ] ++ [(if withQt5 then qtbase else qt4)];
+  propagatedBuildInputs = [ polkit glib qtbase ];
 
   preConfigure = ''
     cmakeFlags+=" -DCMAKE_INSTALL_LIBDIR=''${!outputLib}/lib"
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 8132ccd5aa5..33bdf7235ef 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8469,7 +8469,7 @@ in
     spidermonkey = spidermonkey_17;
   };
 
-  polkit_qt4 = callPackage ../development/libraries/polkit-qt-1 { };
+  polkit_qt4 = callPackage ../development/libraries/polkit-qt-1/qt-4.nix { };
 
   poppler = callPackage ../development/libraries/poppler { lcms = lcms2; };
 
@@ -8581,9 +8581,7 @@ in
 
     phonon-backend-vlc = callPackage ../development/libraries/phonon-backend-vlc/qt5 { };
 
-    polkit-qt = callPackage ../development/libraries/polkit-qt-1 {
-      withQt5 = true;
-    };
+    polkit-qt = callPackage ../development/libraries/polkit-qt-1/qt-5.nix { };
 
     poppler = callPackage ../development/libraries/poppler {
       lcms = lcms2;