diff --git a/nixos/doc/manual/configuration/x-windows.xml b/nixos/doc/manual/configuration/x-windows.xml
index e7219389706..315ed3acf97 100644
--- a/nixos/doc/manual/configuration/x-windows.xml
+++ b/nixos/doc/manual/configuration/x-windows.xml
@@ -191,9 +191,12 @@
GTK themes can be installed either to user profile or system-wide (via
environment.systemPackages). To make Qt 5 applications
- look similar to GTK2 ones, you can install qt5.qtbase.gtk
- package into your system environment. It should work for all Qt 5 library
- versions.
+ look similar to GTK ones, you can use the following configuration:
+
+ = true;
+ = "gtk2";
+ = "gtk2";
+