diff --git a/test/language_test.rb b/test/language_test.rb
index 933d106..4bb2e7f 100644
--- a/test/language_test.rb
+++ b/test/language_test.rb
@@ -45,7 +45,7 @@ class LanguageTest < Minitest::Test
       with_options({language: "japanese", search_synonyms: [["飲む", "喰らう"]]}) do
       end
     end
-    assert_equal "Search synonyms not supported yet for language", error.message
+    assert_equal "Search synonyms are not supported yet for language", error.message
   end
 
   def test_japanese2
--
libgit2 0.21.0