diff --git a/pkgs/development/libraries/kde-frameworks/kdesignerplugin.nix b/pkgs/development/libraries/kde-frameworks/kdesignerplugin.nix
index 91b596cc4d3..8418863eabb 100644
--- a/pkgs/development/libraries/kde-frameworks/kdesignerplugin.nix
+++ b/pkgs/development/libraries/kde-frameworks/kdesignerplugin.nix
@@ -11,6 +11,7 @@ mkDerivation {
   nativeBuildInputs = [ extra-cmake-modules kdoctools ];
   buildInputs = [
     kcompletion kconfig kconfigwidgets kcoreaddons kiconthemes kio kitemviews
-    kplotting ktextwidgets kwidgetsaddons kxmlgui qttools sonnet
+    kplotting ktextwidgets kwidgetsaddons kxmlgui sonnet
   ];
+  propagatedBuildInputs = [ qttools ];
 }