diff --git a/lib/linguist/vendor.yml b/lib/linguist/vendor.yml
index eaedaf64..03f229e8 100644
--- a/lib/linguist/vendor.yml
+++ b/lib/linguist/vendor.yml
@@ -63,6 +63,9 @@
 # Fabric
 - ^fabfile\.py$
 
+# WAF
+- ^waf$
+
 
 ## Obj-C ##
 
diff --git a/test/test_blob.rb b/test/test_blob.rb
index 2b90c67e..5adc3418 100644
--- a/test/test_blob.rb
+++ b/test/test_blob.rb
@@ -225,6 +225,9 @@ class TestBlob < Test::Unit::TestCase
 
     # Fabric
     assert blob("fabfile.py").vendored?
+    
+    # WAF
+    assert blob("waf").vendored?
   end
 
   def test_indexable