lib/axlsx.rb in axlsx-1.1.1 vs lib/axlsx.rb in axlsx-1.1.2

@@ -69,10 +69,10 @@
   # @return [String]
   def self.col_ref(index)
     chars = []
     while index >= 26 do
       chars << ((index % 26) + 65).chr
-      index = index / 26 - 1
+      index = (index / 26).to_i - 1
     end
     chars << (index + 65).chr
     chars.reverse.join
   end