 
 Course = React.createClass(
   displayName: 'Course'
-  mixins: [CourseStore.mixin, UserStore.mixin]
+  mixins: [CourseStore.mixin, UserStore.mixin, NotificationStore.mixin]
   componentWillMount: ->
     ServerActions.fetch 'course', @getCourseID()
     ServerActions.fetch 'users', @getCourseID()

CourseStore       = require '../stores/course_store.coffee'
UserStore         = require '../stores/user_store.coffee'
CohortStore       = require '../stores/cohort_store.coffee'
Affix             = require './common/affix.cjsx'
CourseUtils       = require('../utils/course_utils.js').default
GetHelpButton     = require('../components/common/get_help_button.jsx').default


    <div>
      <div className="course-nav__wrapper">
        <Affix className="course_navigation" offset={57 + NotificationStore.getNotifications().length * 52}>
          <div className="container">
            {courseLink}
            <nav>
