Error when generate swagger with Document object

[rpinheiroalmeida]

When I try to generate a swagger.json file for the object bellow:

export interface Domain {
  dueDate: string;
  beneficiary: Beneficiary;
}

export interface Beneficiary {
   documnet: Document;
}

export interface Document {
    identifier: string;
    type: DOCUMENT_TYPE;
}

export enum DOCUMENT_TYPE {
    CPF = 'CPF',
    CNPJ = 'CNPJ',
}

I got the follow error:

`

swaggerGen -c ./swagger.config.json

There was a problem resolving type of 'HTMLAllCollection'.
There was a problem resolving type of 'Document'.
There was a problem resolving type of 'Beneficiary'.
There was a problem resolving type of 'Domain'.
/Users/rpinheir/Projects/company/issuer-platform/node_modules/typescript-rest-swagger/dist/metadata/methodGenerator.js:82
throw new Error("Error generate parameter method: '" + controllerId.text + "." + methodId.text + "' argument: " + parameterId.text + " " + e);
^

Error: Error generate parameter method: 'DomainEndpoint.create' argument: boleto Error: Only string indexers are supported. Found double.
at /Users/rpinheir/Projects/company/issuer-platform/node_modules/typescript-rest-swagger/dist/metadata/methodGenerator.js:82:23
at Array.map ()
at MethodGenerator.buildParameters (/Users/rpinheir/Projects/company/issuer-platform/node_modules/typescript-rest-swagger/dist/metadata/methodGenerator.js:73:47)
at MethodGenerator.generate (/Users/rpinheir/Projects/company/issuer-platform/node_modules/typescript-rest-swagger/dist/metadata/methodGenerator.js:53:30)
at /Users/rpinheir/Projects/company/issuer-platform/node_modules/typescript-rest-swagger/dist/metadata/controllerGenerator.js:86:58
at Array.map ()
at ControllerGenerator.buildMethodsForClass (/Users/rpinheir/Projects/company/issuer-platform/node_modules/typescript-rest-swagger/dist/metadata/controllerGenerator.js:86:14)
at ControllerGenerator.buildMethods (/Users/rpinheir/Projects/company/issuer-platform/node_modules/typescript-rest-swagger/dist/metadata/controllerGenerator.js:68:43)
at ControllerGenerator.generate (/Users/rpinheir/Projects/company/issuer-platform/node_modules/typescript-rest-swagger/dist/metadata/controllerGenerator.js:47:27)
at /Users/rpinheir/Projects/company/issuer-platform/node_modules/typescript-rest-swagger/dist/metadata/metadataGenerator.js:103:58
at Array.map ()
at MetadataGenerator.buildControllers (/Users/rpinheir/Projects/company/issuer-platform/node_modules/typescript-rest-swagger/dist/metadata/metadataGenerator.js:103:14)
at MetadataGenerator.generate (/Users/rpinheir/Projects/company/issuer-platform/node_modules/typescript-rest-swagger/dist/metadata/metadataGenerator.js:41:32)
`
One interesting fact is when I change the name of the Document for other another name I can get generate the swagger.