spec fix intermittent spec failure

test plan
 - specs should pass

Change-Id: Id93d10d36a4f321be7db82fa9cccb7976a13767a
Reviewed-on: https://gerrit.instructure.com/28568
Reviewed-by: Cody Cutrer <cody@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>
QA-Review: Rob Orton <rob@instructure.com>
Product-Review: Rob Orton <rob@instructure.com>