diff --git a/spec/models/project_spec.rb b/spec/models/project_spec.rb
index 0167d51dd39..1e05d188234 100644
--- a/spec/models/project_spec.rb
+++ b/spec/models/project_spec.rb
@@ -70,7 +70,7 @@ describe Project do
 
     it "should not allow new projects beyond user limits" do
       project2 = build(:project)
-      project2.stub(:creator).and_return(double(can_create_project?: false, projects_limit: 0))
+      project2.stub(:creator).and_return(double(can_create_project?: false, projects_limit: 0).as_null_object)
       project2.should_not be_valid
       project2.errors[:limit_reached].first.should match(/Your own projects limit is 0/)
     end