diff --git a/nixos/modules/services/display-managers/sddm.nix b/nixos/modules/services/display-managers/sddm.nix
index b960c7e63d8d..ec6397179acc 100644
--- a/nixos/modules/services/display-managers/sddm.nix
+++ b/nixos/modules/services/display-managers/sddm.nix
@@ -439,6 +439,10 @@ in
           "plymouth-quit.service"
           "systemd-logind.service"
         ];
+        # sddm stores state in this directory, which should be mounted.
+        unitConfig.RequiresMountsFor = [
+          config.users.users.sddm.home
+        ];
       };
     };
   };