             </g>
         }
 
-        { if @props.selected then @renderMarkButton() }
+        { # REQUIRES MARK-BUTTON-MIXIN
+          if @props.selected then @renderMarkButton()
+        }
 
       </g>
     </g>

Draggable        = require 'lib/draggable'
DeleteButton     = require './delete-button'
DragHandle       = require './drag-handle'

MarkButtonMixin  = require 'lib/mark-button-mixin'

RADIUS = 10

      y: y - DEFAULT_HEIGHT/2
      yUpper: y - DEFAULT_HEIGHT/2 # not sure if these are needed
      yLower: y + DEFAULT_HEIGHT/2

  getDeleteButtonPosition: ->
    x: 100
