diff --git a/pkgs/desktops/kde-4.4/default.nix b/pkgs/desktops/kde-4.4/default.nix
index 7e810d301a8..616a15aeb06 100644
--- a/pkgs/desktops/kde-4.4/default.nix
+++ b/pkgs/desktops/kde-4.4/default.nix
@@ -168,7 +168,7 @@ pkgs.recurseIntoAttrs (rec {
   
   kdeplasma_addons = import ./plasma-addons {
     inherit (pkgs) stdenv fetchurl lib cmake qt4 perl python shared_mime_info;
-    inherit (pkgs.xlibs) libXtst;    
+    inherit (pkgs.xlibs) libXtst libXi;    
     inherit kdelibs kdebase_workspace kdepimlibs kdebase kdegraphics kdeedu;
     inherit automoc4 phonon soprano eigen qimageblitz attica;
   };
diff --git a/pkgs/desktops/kde-4.4/plasma-addons/default.nix b/pkgs/desktops/kde-4.4/plasma-addons/default.nix
index 2549dadb3b4..f0fcbfcc3a6 100644
--- a/pkgs/desktops/kde-4.4/plasma-addons/default.nix
+++ b/pkgs/desktops/kde-4.4/plasma-addons/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, lib, cmake, qt4, perl, python, shared_mime_info, libXtst
+{ stdenv, fetchurl, lib, cmake, qt4, perl, python, shared_mime_info, libXtst, libXi
 , kdelibs, kdebase_workspace, kdepimlibs, kdebase, kdegraphics, kdeedu
 , automoc4, phonon, soprano, eigen, qimageblitz, attica}:
 
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
   inherit kdebase_workspace;
   builder = ./builder.sh;
   KDEDIRS="${kdeedu}";
-  buildInputs = [ cmake qt4 perl python shared_mime_info libXtst
+  buildInputs = [ cmake qt4 perl python shared_mime_info libXtst libXi
                   kdelibs kdebase_workspace kdepimlibs kdebase kdegraphics kdeedu
 		  automoc4 phonon soprano eigen qimageblitz attica ];
   meta = {