diff --git a/test/ruby/test_lazy_enumerator.rb b/test/ruby/test_lazy_enumerator.rb
index 5feddd5..792a95b 100644
--- a/test/ruby/test_lazy_enumerator.rb
+++ b/test/ruby/test_lazy_enumerator.rb
@@ -275,6 +275,11 @@ def test_take
     assert_equal(nil, a.current)
   end
 
+  def test_take_bad_arg
+    a = Step.new(1..10)
+    assert_raise(ArgumentError) { a.lazy.take(-1) }
+  end
+
   def test_take_recycle
     bug6428 = '[ruby-dev:45634]'
     a = Step.new(1..10)