diff --git a/pkgs/applications/kde-apps-15.04/default.nix b/pkgs/applications/kde-apps-15.04/default.nix
index 5f6d7c0bb6da..9cab1775c425 100644
--- a/pkgs/applications/kde-apps-15.04/default.nix
+++ b/pkgs/applications/kde-apps-15.04/default.nix
@@ -385,6 +385,12 @@ let
         buildInputs = super.libksane.buildInputs ++ [scope.KDE4 saneBackends];
       };
 
+      okular = super.okular // {
+        nativeBuildInputs =
+          super.okular.nativeBuildInputs
+          ++ [ pkgs.pkgconfig ];
+      };
+
       rocs = super.rocs // {
         buildInputs = super.rocs.buildInputs ++ (with kf5; [ kdelibs4support ]);
       };