diff --git a/pkgs/applications/kde/default.nix b/pkgs/applications/kde/default.nix
index 718ac70c80b..5cff7241c9b 100644
--- a/pkgs/applications/kde/default.nix
+++ b/pkgs/applications/kde/default.nix
@@ -65,6 +65,7 @@ let
       kate = callPackage ./kate.nix {};
       kcachegrind = callPackage ./kcachegrind.nix {};
       kcalc = callPackage ./kcalc.nix {};
+      kcalcore = callPackage ./kcalcore.nix {};
       kcolorchooser = callPackage ./kcolorchooser.nix {};
       kcontacts = callPackage ./kcontacts.nix {};
       kdegraphics-mobipocket = callPackage ./kdegraphics-mobipocket.nix {};
diff --git a/pkgs/applications/kde/kcalcore.nix b/pkgs/applications/kde/kcalcore.nix
new file mode 100644
index 00000000000..4ac9c9b925a
--- /dev/null
+++ b/pkgs/applications/kde/kcalcore.nix
@@ -0,0 +1,16 @@
+{
+  mkDerivation, lib, kdepimTeam,
+  extra-cmake-modules, kdoctools,
+  kdelibs4support, libical
+}:
+
+mkDerivation {
+  name = "kcalcore";
+  meta = {
+    license = with lib.licenses; [ gpl2 lgpl21 fdl12 ];
+    maintainers = kdepimTeam;
+  };
+  nativeBuildInputs = [ extra-cmake-modules kdoctools ];
+  propagatedBuildInputs = [ kdelibs4support libical ];
+  outputs = [ "out" "dev" ];
+}