lib/write_xlsx/chart.rb in write_xlsx-1.10.2 vs lib/write_xlsx/chart.rb in write_xlsx-1.11.0

@@ -369,10 +369,10 @@
 
     #
     # Set on of the 42 built-in Excel chart styles. The default style is 2.
     #
     def set_style(style_id = 2)
-      style_id = 2 if style_id < 0 || style_id > 48
+      style_id = 2 if style_id < 1 || style_id > 48
       @style_id = style_id
     end
 
     #
     # Set the option for displaying blank data in a chart. The default is 'gap'.