diff --git a/nixos/modules/services/x11/display-managers/default.nix b/nixos/modules/services/x11/display-managers/default.nix
index cb3c0c7a8437401..035029150c81969 100644
--- a/nixos/modules/services/x11/display-managers/default.nix
+++ b/nixos/modules/services/x11/display-managers/default.nix
@@ -244,7 +244,10 @@ in
           ''
             xmessage "Hello World!" &
           '';
-        description = "Shell commands executed just before the window or desktop manager is started.";
+        description = ''
+          Shell commands executed just before the window or desktop manager is
+          started. These commands are not currently sourced for Wayland sessions.
+        '';
       };
 
       hiddenUsers = mkOption {