diff --git a/pkgs/desktops/kde-4.2/pimlibs/default.nix b/pkgs/desktops/kde-4.2/pimlibs/default.nix
index 7b7bfd5fb5b4..200eadd607a4 100644
--- a/pkgs/desktops/kde-4.2/pimlibs/default.nix
+++ b/pkgs/desktops/kde-4.2/pimlibs/default.nix
@@ -2,7 +2,7 @@
  kdelibs, automoc4, phonon, akonadi}:
 
 stdenv.mkDerivation {
-  name = "kdepimlibs-4.2.";
+  name = "kdepimlibs-4.2.3";
   src = fetchurl {
     url = mirror://kde/stable/4.2.3/src/kdepimlibs-4.2.3.tar.bz2;
     sha1 = "3b12d5974bfbc384e3c986328a7bb5b1b6b50361";