diff --git a/nixos/modules/system/boot/systemd/sysusers.nix b/nixos/modules/system/boot/systemd/sysusers.nix
index 98f93f25c54d..d0af52e0ae9e 100644
--- a/nixos/modules/system/boot/systemd/sysusers.nix
+++ b/nixos/modules/system/boot/systemd/sysusers.nix
@@ -68,14 +68,10 @@ in
         assertion = config.system.activationScripts.users == "";
         message = "system.activationScripts.users has to be empty to use systemd-sysusers";
       }
-      {
-        assertion = config.users.mutableUsers -> config.system.etc.overlay.enable;
-        message = "config.users.mutableUsers requires config.system.etc.overlay.enable.";
-      }
     ] ++ (lib.mapAttrsToList
-      (_username: opts: {
+      (username: opts: {
         assertion = !opts.isNormalUser;
-        message = "systemd-sysusers doesn't create normal users. You can currently only use it to create system users.";
+        message = "${username} is a normal user. systemd-sysusers doesn't create normal users, only system users.";
       })
       userCfg.users)
     ++ lib.mapAttrsToList
diff --git a/nixos/modules/system/etc/etc-activation.nix b/nixos/modules/system/etc/etc-activation.nix
index 9b43d76e8746..6c6352b0419d 100644
--- a/nixos/modules/system/etc/etc-activation.nix
+++ b/nixos/modules/system/etc/etc-activation.nix
@@ -26,13 +26,6 @@
           assertion = lib.versionAtLeast config.boot.kernelPackages.kernel.version "6.6";
           message = "`system.etc.overlay.enable requires a newer kernel, at least version 6.6";
         }
-        {
-          assertion = config.systemd.sysusers.enable -> (config.users.mutableUsers == config.system.etc.overlay.mutable);
-          message = ''
-            When using systemd-sysusers and mounting `/etc` via an overlay, users
-            can only be mutable when `/etc` is mutable and vice versa.
-          '';
-        }
       ];
 
       boot.initrd.availableKernelModules = [ "loop" "erofs" "overlay" ];