diff --git a/hosts/deertopia/configuration.nix b/hosts/deertopia/configuration.nix
index 79eda25..9b846d4 100644
--- a/hosts/deertopia/configuration.nix
+++ b/hosts/deertopia/configuration.nix
@@ -116,8 +116,6 @@
     };
   };
 
-  users.mutableUsers = true;
-
   nix = {
     settings = {
       trusted-users = [
diff --git a/hosts/fruitbook/configuration.nix b/hosts/fruitbook/configuration.nix
index 876f97e..3a174b5 100644
--- a/hosts/fruitbook/configuration.nix
+++ b/hosts/fruitbook/configuration.nix
@@ -107,9 +107,6 @@
     settings.X11Forwarding = true;
   };
 
-  # TODO: Move to defaults.
-  users.mutableUsers = false;
-
   nix = {
     settings = {
       allow-import-from-derivation = true;