diff --git a/nixos/modules/service-managers/docker.nix b/nixos/modules/service-managers/docker.nix
index 8e9c763b18a..7effe0e85d4 100644
--- a/nixos/modules/service-managers/docker.nix
+++ b/nixos/modules/service-managers/docker.nix
@@ -6,7 +6,7 @@ let
   cfg = config.docker-containers;
 
   containerModule = {
-    script = mkOption {
+    options.script = mkOption {
       type = types.lines;
       description = "Shell commands executed as the service's main process.";
     };