diff --git a/core/test/functional/routes/api/posts_spec.js b/core/test/functional/routes/api/posts_spec.js
index e30f9b0e5f..759649e020 100644
--- a/core/test/functional/routes/api/posts_spec.js
+++ b/core/test/functional/routes/api/posts_spec.js
@@ -22,7 +22,7 @@ describe('Post API', function () {
                     request = supertest.agent(config.get('url'));
                 })
                 .then(function () {
-                    return testUtils.doAuth(request, 'posts');
+                    return testUtils.doAuth(request, 'users:extra', 'posts');
                 })
                 .then(function (token) {
                     ownerAccessToken = token;
@@ -726,9 +726,10 @@ describe('Post API', function () {
 
                         var jsonResponse = res.body,
                             changedTitle = 'My new Title',
-                            changedAuthor = ObjectId.generate();
+                            changedAuthor = testUtils.DataGenerator.Content.extraUsers[0].id;
 
                         should.exist(jsonResponse.posts[0]);
+                        jsonResponse.posts[0].author.should.not.eql(changedAuthor);
                         jsonResponse.posts[0].title = changedTitle;
                         jsonResponse.posts[0].author = changedAuthor;
                         jsonResponse.posts[0].custom_template = 'custom-about';