diff --git a/xyz/openbmc_project/User/Attributes.interface.yaml b/xyz/openbmc_project/User/Attributes.interface.yaml
index 24df81b..50d1816 100644
--- a/xyz/openbmc_project/User/Attributes.interface.yaml
+++ b/xyz/openbmc_project/User/Attributes.interface.yaml
@@ -14,9 +14,11 @@
     - name: UserPrivilege
       type: string
       description: >
-          Privilege of the user.
+          Privilege of the user. Acceptable values of the system are listed
+          under AllPrivileges property under User.Manager interface.
       errors:
           - xyz.openbmc_project.Common.Error.InternalFailure
+          - xyz.openbmc_project.Common.Error.InvalidArgument
 
     - name: UserEnabled
       type: boolean