diff --git a/lib/linguist/vendor.yml b/lib/linguist/vendor.yml
index a8597735..645d4a55 100644
--- a/lib/linguist/vendor.yml
+++ b/lib/linguist/vendor.yml
@@ -224,7 +224,7 @@
 - ^readme$
 
 # Test fixtures
-- ^[Tt]est/fixtures/
+- ^[Tt]ests?/fixtures/
 
 # PhoneGap/Cordova
 - (^|/)cordova([^.]*)\.js$
diff --git a/test/test_blob.rb b/test/test_blob.rb
index 4157841d..38c90d6b 100644
--- a/test/test_blob.rb
+++ b/test/test_blob.rb
@@ -421,6 +421,7 @@ class TestBlob < Minitest::Test
     # Test fixtures
     assert sample_blob("test/fixtures/random.rkt").vendored?
     assert sample_blob("Test/fixtures/random.rkt").vendored?
+    assert sample_blob("tests/fixtures/random.rkt").vendored?
 
     # Cordova/PhoneGap
     assert sample_blob("cordova.js").vendored?