diff --git a/pkgs/development/libraries/kde-frameworks/kdewebkit.nix b/pkgs/development/libraries/kde-frameworks/kdewebkit.nix
index b7dcfb7fe64..9f682b44975 100644
--- a/pkgs/development/libraries/kde-frameworks/kdewebkit.nix
+++ b/pkgs/development/libraries/kde-frameworks/kdewebkit.nix
@@ -8,4 +8,7 @@ mkDerivation {
   buildInputs = [ kconfig kcoreaddons kio kparts ];
   propagatedBuildInputs = [ qtwebkit ];
   outputs = [ "out" "dev" ];
+  cmakeFlags = [
+    "-DBUILD_DESIGNERPLUGIN=OFF"
+  ];
 }