diff --git a/pkgs/desktops/kde-4.14/kdepim.nix b/pkgs/desktops/kde-4.14/kdepim.nix
index 9f266e596a61..df41c85c8ac6 100644
--- a/pkgs/desktops/kde-4.14/kdepim.nix
+++ b/pkgs/desktops/kde-4.14/kdepim.nix
@@ -15,7 +15,7 @@ kde {
 
   nativeBuildInputs = [ pkgconfig ];
 
-  passthru.propagatedUserEnvPackages = [ akonadi kdepimlibs kdepim_runtime ];
+  propagatedUserEnvPkgs = [ akonadi kdepimlibs kdepim_runtime ];
 
   meta = {
     description = "KDE PIM tools";
diff --git a/pkgs/desktops/kde-4.14/kdeutils/print-manager.nix b/pkgs/desktops/kde-4.14/kdeutils/print-manager.nix
index ae72becd1e49..e786c8f70419 100644
--- a/pkgs/desktops/kde-4.14/kdeutils/print-manager.nix
+++ b/pkgs/desktops/kde-4.14/kdeutils/print-manager.nix
@@ -9,16 +9,10 @@ kde rec {
 
   pythonPath = [ cups pyqt4 pykde4 pycups s_c_p ];
 
-  passthru.propagatedUserEnvPackages = [ s_c_p ];
+  # system-config-printer supplies some D-Bus policy that we need.
+  propagatedUserEnvPkgs = [ s_c_p ];
 
-  postInstall =
-    ''
-      wrapPythonPrograms
-
-      # "system-config-printer" supplies some D-Bus policy that we need.
-      mkdir -p $out/nix-support
-      echo ${s_c_p} > $out/nix-support/propagated-user-env-packages
-    '';
+  postInstall = "wrapPythonPrograms";
 
   meta = {
     description = "KDE printer manager";