From 36a3cbf3970bb30bacec8b3fef435e52fcc4b66e Mon Sep 17 00:00:00 2001
From: Jan-Hendrik Hühne <jan.huehne@googlemail.com>
Date: Thu, 24 May 2012 10:31:43 +0200
Subject: Bugfix

---
 lib/axlsx/workbook/worksheet/data_validation.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/axlsx/workbook/worksheet/data_validation.rb b/lib/axlsx/workbook/worksheet/data_validation.rb
index c2c1cb0e..2591c669 100644
--- a/lib/axlsx/workbook/worksheet/data_validation.rb
+++ b/lib/axlsx/workbook/worksheet/data_validation.rb
@@ -233,7 +233,7 @@ module Axlsx
       elsif @type == :list
         attributes << [:showDropDown, :formula1]
       elsif @type == :custom
-        attributes << :formula1
+        attributes << [:formula1]
       else
         attributes = []
       end
-- 
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