lib/axlsx/drawing/series_title.rb in axlsx-1.0.8 vs lib/axlsx/drawing/series_title.rb in axlsx-1.0.9

@@ -6,10 +6,10 @@
     # @param [Nokogiri::XML::Builder] xml The document builder instance this objects xml will be added to.
     # @return [String]
     def to_xml(xml)
       xml.send('c:tx') {
         xml.send('c:strRef') {
-          xml.send('c:f', range)
+          xml.send('c:f', Axlsx::cell_range([@cell]))
           xml.send('c:strCache') {
             xml.send('c:ptCount', :val=>1)
             xml.send('c:pt', :idx=>0) {
               xml.send('c:v', @text)
             }