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-rw-r--r--lib/axlsx/drawing/scatter_chart.rb4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/axlsx/drawing/scatter_chart.rb b/lib/axlsx/drawing/scatter_chart.rb
index b518c594..60b7c5b3 100644
--- a/lib/axlsx/drawing/scatter_chart.rb
+++ b/lib/axlsx/drawing/scatter_chart.rb
@@ -52,8 +52,8 @@ module Axlsx
def to_xml_string(str = +'')
super(str) do
str << '<c:scatterChart>'
- str << (+'<c:scatterStyle val="' << scatter_style.to_s << '"/>')
- str << (+'<c:varyColors val="' << vary_colors.to_s << '"/>')
+ str << '<c:scatterStyle val="' << scatter_style.to_s << '"/>'
+ str << '<c:varyColors val="' << vary_colors.to_s << '"/>'
@series.each { |ser| ser.to_xml_string(str) }
d_lbls.to_xml_string(str) if @d_lbls
axes.to_xml_string(str, :ids => true)