diff --git a/nixos/modules/services/display-managers/sddm.nix b/nixos/modules/services/display-managers/sddm.nix
index cf8892a816bd..750b35ba72aa 100644
--- a/nixos/modules/services/display-managers/sddm.nix
+++ b/nixos/modules/services/display-managers/sddm.nix
@@ -281,9 +281,9 @@ in
 
     assertions = [
       {
-        assertion = xcfg.enable;
+        assertion = xcfg.enable || cfg.wayland.enable;
         message = ''
-          SDDM requires services.xserver.enable to be true
+          SDDM requires either services.xserver.enable or services.xserver.displayManager.sddm.wayland.enable to be true
         '';
       }
       {