diff --git a/pkgs/applications/kde-apps-15.04/default.nix b/pkgs/applications/kde-apps-15.04/default.nix
index 798d6d977b0d..9de2f7a9fe15 100644
--- a/pkgs/applications/kde-apps-15.04/default.nix
+++ b/pkgs/applications/kde-apps-15.04/default.nix
@@ -90,6 +90,7 @@ let
         Gpgme = gpgme;
         Gphoto2 = libgphoto2;
         Grantlee = grantlee;
+        Grantlee5 = grantlee5;
         GSL = gsl;
         HUNSPELL = hunspell;
         HUpnp = herqq;
@@ -350,6 +351,10 @@ let
         '';
       };
 
+      rocs = super.rocs // {
+        buildInputs = super.rocs.buildInputs ++ (with kf5; [ kdelibs4support ]);
+      };
+
       signon-kwallet-extension =
         let signon = pkgs.signon.override { inherit qt5; };
         in super.signon-kwallet-extension // {