diff --git a/nixos/doc/manual/configuration/modularity.xml b/nixos/doc/manual/configuration/modularity.xml
index 30da064ac57..5420c7f8838 100644
--- a/nixos/doc/manual/configuration/modularity.xml
+++ b/nixos/doc/manual/configuration/modularity.xml
@@ -37,7 +37,7 @@ latter might look like this:
 
 { services.xserver.enable = true;
   services.xserver.displayManager.sddm.enable = true;
-  services.xserver.desktopManager.kde5.enable = true;
+  services.xserver.desktopManager.plasma5.enable = true;
 }
 </programlisting>
 
diff --git a/nixos/doc/manual/configuration/x-windows.xml b/nixos/doc/manual/configuration/x-windows.xml
index 214eec9e1fc..4a73695e094 100644
--- a/nixos/doc/manual/configuration/x-windows.xml
+++ b/nixos/doc/manual/configuration/x-windows.xml
@@ -25,7 +25,7 @@ Otherwise, you can only log into a plain undecorated
 <command>xterm</command> window.  Thus you should pick one or more of
 the following lines:
 <programlisting>
-services.xserver.desktopManager.kde5.enable = true;
+services.xserver.desktopManager.plasma5.enable = true;
 services.xserver.desktopManager.xfce.enable = true;
 services.xserver.desktopManager.gnome3.enable = true;
 services.xserver.windowManager.xmonad.enable = true;