Bugfix.

2 files changed, 3 insertions, 2 deletions

diff --git a/lib/axlsx/workbook/worksheet/data_validation.rb b/lib/axlsx/workbook/worksheet/data_validation.rb
index 715a7114..3531cceb 100644
--- a/lib/axlsx/workbook/worksheet/data_validation.rb
+++ b/lib/axlsx/workbook/worksheet/data_validation.rb
@@ -1,3 +1,4 @@
+# encoding: UTF-8
 module Axlsx
   # Data validation allows the validation of cell data
   #
@@ -197,4 +198,4 @@ module Axlsx
       str << '</dataValidation>'
     end
   end
-end
+end
\ No newline at end of file
diff --git a/lib/axlsx/workbook/worksheet/worksheet.rb b/lib/axlsx/workbook/worksheet/worksheet.rb
index 9af87e26..58284fa6 100644
--- a/lib/axlsx/workbook/worksheet/worksheet.rb
+++ b/lib/axlsx/workbook/worksheet/worksheet.rb
@@ -213,7 +213,7 @@ module Axlsx
     # @see
     def add_data_validation(cells, data_validation)
       dv = DataValidation.new(data_validation)
-      data_validation.sqref = cells
+      dv.sqref = cells
       @data_validations << data_validation
     end