     hideNotification: ->
 
       @notificationTimer.clear()  if @notificationTimer
-      @setState { removed : yes }  if @isMounted
+      @setState { removed : yes }  if @mounted
       @removeNotification()
 
 

      transitionEvent = getVendorTransition()
      element = ReactDOM.findDOMNode this
      notification = @props.notification
      @isMounted = yes
      if transitionEvent
        element.addEventListener transitionEvent, @onTransitionEnd
        if @autoDismissible notification

      super props
      @style = { zIndex: 100 + @props.index }
      @notificationTimer = null
      @mounted = no
      @removeCount = 0
      @state =
        removed : no
