lib/write_xlsx/chartsheet.rb in write_xlsx-0.0.2 vs lib/write_xlsx/chartsheet.rb in write_xlsx-0.0.3

@@ -121,10 +121,10 @@
     #
     # Set up chart/drawings.
     #
     def prepare_chart(index, chart_id, drawing_id) # :nodoc:
       drawing = Drawing.new
-      @drawing = $drawing
+      @drawing = drawing
       @drawing.orientation = @orientation
 
       @external_drawing_links << [ '/drawing', '../drawings/drawing' << drawing_id << '.xml' ]
 
       @drawing_links << [ '/chart', '../charts/chart' << chart_id << '.xml' ]