diff --git a/nixos/modules/services/x11/display-managers/default.nix b/nixos/modules/services/x11/display-managers/default.nix
index f561c5f8b7a9..357fa8ce8f36 100644
--- a/nixos/modules/services/x11/display-managers/default.nix
+++ b/nixos/modules/services/x11/display-managers/default.nix
@@ -266,7 +266,7 @@ in
           session.  Each session script can set the
           <varname>waitPID</varname> shell variable to make this script
           wait until the end of the user session.  Each script is used
-          to define either a windows manager or a desktop manager.  These
+          to define either a window manager or a desktop manager.  These
           can be differentiated by setting the attribute
           <varname>manage</varname> either to <literal>"window"</literal>
           or <literal>"desktop"</literal>.