diff --git a/pkgs/development/libraries/kde-frameworks/kio/default.nix b/pkgs/development/libraries/kde-frameworks/kio/default.nix
index 281778d9d07f..3fd4729bd1f0 100644
--- a/pkgs/development/libraries/kde-frameworks/kio/default.nix
+++ b/pkgs/development/libraries/kde-frameworks/kio/default.nix
@@ -20,5 +20,6 @@ mkDerivation {
     kbookmarks kcompletion kconfig kcoreaddons kitemviews kjobwidgets kservice
     kxmlgui qtbase solid
   ];
+  outputs = [ "out" "dev" ];
   patches = (copyPathsToStore (lib.readPathsFromFile ./. ./series));
 }