diff --git a/pkgs/desktops/plasma-5/kde-gtk-config/default.nix b/pkgs/desktops/plasma-5/kde-gtk-config/default.nix
index a61fc328236d..c55193ae6429 100644
--- a/pkgs/desktops/plasma-5/kde-gtk-config/default.nix
+++ b/pkgs/desktops/plasma-5/kde-gtk-config/default.nix
@@ -2,7 +2,6 @@
 , extra-cmake-modules
 , wrapGAppsHook
 , glib
-, gtk2
 , gtk3
 , karchive
 , kcmutils
@@ -25,7 +24,6 @@ mkDerivation {
     ki18n
     kio
     glib
-    gtk2
     gtk3
     karchive
     kcmutils
@@ -39,7 +37,6 @@ mkDerivation {
   ];
   cmakeFlags = [
     "-DGTK2_GLIBCONFIG_INCLUDE_DIR=${glib.out}/lib/glib-2.0/include"
-    "-DGTK2_GDKCONFIG_INCLUDE_DIR=${gtk2.out}/lib/gtk-2.0/include"
     "-DGLIB_SCHEMAS_DIR=${gsettings-desktop-schemas.out}/"
   ];
   # The gtkconfig KDED module will crash the daemon if the GSettings schemas