diff --git a/pkgs/development/libraries/kde-frameworks/kxmlgui.nix b/pkgs/development/libraries/kde-frameworks/kxmlgui.nix
index c28c6642704b..35d01f5e7d89 100644
--- a/pkgs/development/libraries/kde-frameworks/kxmlgui.nix
+++ b/pkgs/development/libraries/kde-frameworks/kxmlgui.nix
@@ -17,7 +17,10 @@
 
 mkDerivation {
   pname = "kxmlgui";
-  outputs = [ "out" "dev" ];
+  outputs = [
+    "out"
+    "dev"
+  ];
   nativeBuildInputs = [ extra-cmake-modules ];
   buildInputs = [
     attica