lib/lite/validators/isbn_validator.rb in lite-validators-1.0.0 vs lib/lite/validators/isbn_validator.rb in lite-validators-1.0.1

@@ -1,10 +1,10 @@
 # frozen_string_literal: true
 
 class IsbnValidator < BaseValidator
 
   CHARACTERS ||= %w[
-    0 1 2 3 4 5 6 7 8 9 0 x
+    0 1 2 3 4 5 6 7 8 9 x
   ].freeze
 
   private
 
   def valid_attr?