diff --git a/modules/services/x11/desktop-managers/kde4.nix b/modules/services/x11/desktop-managers/kde4.nix
index b8edf73815b9..8a4800f7d0aa 100644
--- a/modules/services/x11/desktop-managers/kde4.nix
+++ b/modules/services/x11/desktop-managers/kde4.nix
@@ -40,17 +40,18 @@ in
         start =
           ''
             # Start KDE.
-            exec ${pkgs.kde42.kdebase_workspace}/bin/startkde
+            exec ${pkgs.kde43.kdebase_workspace}/bin/startkde
           '';
       };
 
     security.setuidPrograms = [ "kcheckpass" ];
 
     environment.kdePackages =
-      [ pkgs.kde42.kdelibs
-        pkgs.kde42.kdebase
-        pkgs.kde42.kdebase_runtime
-        pkgs.kde42.kdebase_workspace
+      [ pkgs.kde43.kdelibs
+        pkgs.kde43.kdebase
+        pkgs.kde43.kdebase_runtime
+        pkgs.kde43.kdebase_workspace
+	pkgs.kde43.oxygen_icons
         pkgs.shared_mime_info
       ];
 
diff --git a/modules/services/x11/display-managers/kdm.nix b/modules/services/x11/display-managers/kdm.nix
index 55ab406b9e9c..62d9c609ce6f 100644
--- a/modules/services/x11/display-managers/kdm.nix
+++ b/modules/services/x11/display-managers/kdm.nix
@@ -7,7 +7,7 @@ let
   dmcfg = config.services.xserver.displayManager;
   cfg = dmcfg.kdm;
 
-  inherit (pkgs.kde42) kdebase_workspace;
+  inherit (pkgs.kde43) kdebase_workspace;
 
   defaultConfig =
     ''