             "no view found for #{item.cid}"
 
         # Show/hide or mark the view accordingly.
-        filterCallback view, included
+        @filterCallback view, included
 
         # Update visibleItems list, but do not trigger an event immediately.
         @updateVisibleItems view.model, included, false

      for item, index in @collection.models

        # Apply filter to the item.
        included = if typeof filterer is 'function'
          filterer item, index
        else
          true


    if typeof filterCallback is 'function' or filterCallback is null
      @filterCallback = filterCallback

    hasItemViews = do =>
      if @subviews.length > 0
        for name of @subviewsByName when name.slice(0, 9) is 'itemView:'
