diff --git a/xyz/openbmc_project/Inventory/Manager.interface.yaml b/xyz/openbmc_project/Inventory/Manager.interface.yaml
index 53ce1fd..a02848f 100644
--- a/xyz/openbmc_project/Inventory/Manager.interface.yaml
+++ b/xyz/openbmc_project/Inventory/Manager.interface.yaml
@@ -12,7 +12,7 @@
           state managed.
       parameters:
         - name: object
-          type: dict[path,dict[string,dict[string,variant[boolean,int64,string]]]]
+          type: dict[path,dict[string,dict[string,variant[boolean,int64,string,array[byte]]]]]
           description: >
               A dictionary of fully enumerated items to be managed.