diff --git a/nixos/modules/virtualisation/containers.nix b/nixos/modules/virtualisation/containers.nix
index b3055f49f9b..5e1cfcdfc6f 100644
--- a/nixos/modules/virtualisation/containers.nix
+++ b/nixos/modules/virtualisation/containers.nix
@@ -502,8 +502,7 @@ in
             };
 
             allowedDevices = mkOption {
-              type = types.listOf types.optionSet;
-              options = [ allowedDeviceOpts ];
+              type = with types; listOf (submodule allowedDeviceOpts);
               default = [];
               example = [ { node = "/dev/net/tun"; modifier = "rw"; } ];
               description = ''