diff --git a/examples/full-nixos/arion-compose.nix b/examples/full-nixos/arion-compose.nix
index 02c9973..03eb78f 100644
--- a/examples/full-nixos/arion-compose.nix
+++ b/examples/full-nixos/arion-compose.nix
@@ -1,6 +1,6 @@
 {
   docker-compose.services.webserver = { pkgs, ... }: {
-    nixos.useInit = true;
+    nixos.useSystemd = true;
     nixos.configuration.services.nginx.enable = true;
     nixos.configuration.services.nginx.virtualHosts.localhost.root = "${pkgs.nix.doc}/share/doc/nix/manual";
     service.useHostStore = true;
diff --git a/src/nix/modules/service/nixos-init.nix b/src/nix/modules/service/nixos-init.nix
index 39ae4f6..2b37db8 100644
--- a/src/nix/modules/service/nixos-init.nix
+++ b/src/nix/modules/service/nixos-init.nix
@@ -7,18 +7,18 @@ let
 in
 {
   options = {
-    nixos.useInit = lib.mkOption {
+    nixos.useSystemd = lib.mkOption {
       type = types.bool;
       default = false;
       description = ''
-        When enabled, call the NixOS init system.
+        When enabled, call the NixOS systemd-based init system.
 
         Configure NixOS with <code>nixos.configuration</code>.
       '';
     };
   };
 
-  config = lib.mkIf (config.nixos.useInit) {
+  config = lib.mkIf (config.nixos.useSystemd) {
     nixos.configuration.imports = [
       ../nixos/container-systemd.nix
       (pkgs.path + "/nixos/modules/profiles/minimal.nix")
diff --git a/src/nix/modules/service/nixos.nix b/src/nix/modules/service/nixos.nix
index fc18898..2cfc344 100644
--- a/src/nix/modules/service/nixos.nix
+++ b/src/nix/modules/service/nixos.nix
@@ -18,7 +18,7 @@ in
 
         This option is unused by default, because not all images use NixOS.
 
-        One way to use this is to enable <code>nixos.useInit</code>, but the
+        One way to use this is to enable <code>nixos.useSystemd</code>, but the
         NixOS configuration can be used in other ways.
       '';
     };
@@ -31,7 +31,7 @@ in
 
         This option is unused by default, because not all images use NixOS.
 
-        One way to use this is to enable <code>nixos.useInit</code>, but the
+        One way to use this is to enable <code>nixos.useSystemd</code>, but the
         NixOS configuration can be used in other ways.
       '';
     };
@@ -44,7 +44,7 @@ in
 
         This option is unused by default, because not all images use NixOS.
 
-        One way to use this is to enable <code>nixos.useInit</code>, but the
+        One way to use this is to enable <code>nixos.useSystemd</code>, but the
         NixOS configuration can be used in other ways.
       '';
     };