diff --git a/pkgs/development/libraries/kde-frameworks/kconfig.nix b/pkgs/development/libraries/kde-frameworks/kconfig.nix
index ea992b7b52d8..25bd8d183090 100644
--- a/pkgs/development/libraries/kde-frameworks/kconfig.nix
+++ b/pkgs/development/libraries/kde-frameworks/kconfig.nix
@@ -7,6 +7,7 @@
 
 mkDerivation {
   pname = "kconfig";
+  outputs = [ "out" "dev" ];
   nativeBuildInputs = [ extra-cmake-modules ];
   buildInputs = [ qttools ];
   propagatedBuildInputs = [ qtbase ];