diff --git a/package.json b/package.json
index f890332..f801ca3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mobx-rest",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "REST conventions for mobx.",
   "repository": {
     "type": "git",
diff --git a/src/Collection.js b/src/Collection.js
index e642eb5..9975f30 100644
--- a/src/Collection.js
+++ b/src/Collection.js
@@ -19,8 +19,8 @@ interface ApiInterface { // eslint-disable-line
 }
 
 class Collection {
-  @observable request: ?Request
-  @observable error: ?Error
+  @observable request: ?Request = null
+  @observable error: ?Error = null
   @observable models: [] = []
 
   api: ApiInterface // eslint-disable-line
diff --git a/src/Model.js b/src/Model.js
index a59e49d..1dd70a1 100644
--- a/src/Model.js
+++ b/src/Model.js
@@ -5,8 +5,8 @@ import getUuid from 'node-uuid'
 import type { Uuid, Error, Request, Id, Label, DestroyOptions, SaveOptions } from './types'
 
 class Model {
-  @observable request: ?Request
-  @observable error: ?Error
+  @observable request: ?Request = null
+  @observable error: ?Error = null
 
   uuid: Uuid
   collection: Collection