diff --git a/pkgs/clan-cli/clan_cli/inventory/classes.py b/pkgs/clan-cli/clan_cli/inventory/classes.py
index d21fb139c..77218498b 100644
--- a/pkgs/clan-cli/clan_cli/inventory/classes.py
+++ b/pkgs/clan-cli/clan_cli/inventory/classes.py
@@ -16,6 +16,7 @@ class Machine(TypedDict):
     deploy: NotRequired[MachineDeploy]
     description: NotRequired[str]
     icon: NotRequired[str]
+    machineClass: NotRequired[Literal["nixos", "darwin"]]
     name: NotRequired[str]
     tags: NotRequired[list[str]]
 
@@ -29,7 +30,6 @@ Service = dict[str, Any]
 
 
 class Inventory(TypedDict):
-    machineClass: NotRequired[dict[str, Any]]
     machines: NotRequired[dict[str, Machine]]
     meta: NotRequired[Meta]
     modules: NotRequired[dict[str, Any]]