diff --git a/pkgs/desktops/kde-4.5/default.nix b/pkgs/desktops/kde-4.5/default.nix
index fc15d1f54bb..c8489abbac6 100644
--- a/pkgs/desktops/kde-4.5/default.nix
+++ b/pkgs/desktops/kde-4.5/default.nix
@@ -135,9 +135,12 @@
     kimagemapeditor = callPackage ./webdev/kimagemapeditor.nix { };
   };
 
-  #kdepim_runtime = callPackage ../kde-4.4/pim-runtime { };
-  kdepim_runtime = callPackage ./pim-runtime { };
-  kdepim = callPackage ./pim { };
+  kdepim_runtime = callPackage ../kde-4.4/pim-runtime { };
+  kdepim = callPackage ../kde-4.4/pim { };
+
+  # Experimental 4.5 versions
+  kdepim_runtime45 = callPackage ./pim-runtime { };
+  kdepim45 = callPackage ./pim { };
 ### DEVELOPMENT
 
   kdebindings = callPackage ./bindings { };