source property in holdingsrecordssource.json is missing type property

PS C:\Temp\FOLIO\mod-inventory-storage\ramls> cat holdingsrecordssource.json
{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "description": "A holdings records source",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "The unique ID of the holdings records source; UUID",
      "$ref": "uuid.json"
    },
    "name": {
      "type": "string",
      "description": "Name of the holdings records source"
    },
    "source": {
      "enum": [
        "folio",
        "local"
      ],
      "description": "The holdings records source"
    },
    "metadata": {
      "type": "object",
      "$ref": "raml-util/schemas/metadata.schema",
      "readonly": true
    }
  },
  "required": [
    "name"
  ]
}

    "source": {
      "type": "string",
      "enum": [
        "folio",
        "local"
      ],
      "description": "The holdings records source"
    },