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-rw-r--r--activesupport/test/multibyte_chars_test.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/activesupport/test/multibyte_chars_test.rb b/activesupport/test/multibyte_chars_test.rb
index 4e4a3e2d90..63cfadb7ec 100644
--- a/activesupport/test/multibyte_chars_test.rb
+++ b/activesupport/test/multibyte_chars_test.rb
@@ -1,3 +1,4 @@
+# encoding: utf-8
require 'abstract_unit'
if RUBY_VERSION < '1.9'