diff --git a/test/language_test.rb b/test/language_test.rb
index 02ae3ab..12e0d1a 100644
--- a/test/language_test.rb
+++ b/test/language_test.rb
@@ -6,6 +6,7 @@ class LanguageTest < Minitest::Test
   end
 
   def test_chinese
+    # requires https://github.com/medcl/elasticsearch-analysis-ik
     skip unless ENV["CHINESE"]
 
     with_options(Song, language: "chinese") do
diff --git a/test/synonyms_test.rb b/test/synonyms_test.rb
index 262fe18..47de893 100644
--- a/test/synonyms_test.rb
+++ b/test/synonyms_test.rb
@@ -47,7 +47,9 @@ class SynonymsTest < Minitest::Test
   end
 
   def test_wordnet
-    skip unless ENV["TEST_WORDNET"]
+    # requires WordNet
+    skip unless ENV["WORDNET"]
+
     store_names ["Creature", "Beast", "Dragon"], Animal
     assert_search "animal", ["Creature", "Beast"], {}, Animal
   end
--
libgit2 0.21.0