diff --git a/deevirt_schema/api/vm.py b/deevirt_schema/api/vm.py
index 90e1735..6515bae 100644
--- a/deevirt_schema/api/vm.py
+++ b/deevirt_schema/api/vm.py
@@ -65,10 +65,11 @@ class DevicesDisk(BaseModel):
     model_config = ConfigDict(from_attributes=True)
 
     pool_id:Optional[UUID4] = Field(default=None)
-    id:UUID4 = Field(default_factory=uuid4)
+    id:Optional[UUID4] = Field(default_factory=uuid4)
     size:int = Field()
     unit:configDom.UnitEnum = Field(default=configDom.UnitEnum.GiB)
     bus:configDom.DevicesDiskTarget.busEnum = Field(default=configDom.DevicesDiskTarget.busEnum.scsi)
+    order:Optional[int] = Field(default=0)
 
 class DevicesCDROMSource(BaseModel):
     protocol:configDom.DevicesDiskSource.protocolEnum = Field(default=configDom.DevicesDiskSource.protocolEnum.https)