diff --git a/test/unit/setting_test.rb b/test/unit/setting_test.rb
index 6c3c27d..b6e76c8 100644
--- a/test/unit/setting_test.rb
+++ b/test/unit/setting_test.rb
@@ -118,8 +118,9 @@ YAML
     Setting.commit_update_keywords = {}
     assert_equal 1, Setting.where(:name => 'commit_update_keywords').update_all(:value => yaml)
     Setting.clear_cache
-
-    assert_equal 'UTF-8', Setting.commit_update_keywords.first['keywords'].encoding.name
+    if "".respond_to?(:force_encoding)
+      assert_equal 'UTF-8', Setting.commit_update_keywords.first['keywords'].encoding.name
+    end
   ensure
     Setting.where(:name => 'commit_update_keywords').delete_all
     Setting.clear_cache