diff --git a/mitogen/select.py b/mitogen/select.py
index 6d46c336..92945a9d 100644
--- a/mitogen/select.py
+++ b/mitogen/select.py
@@ -135,6 +135,8 @@ class Select(object):
         """
         return bool(self._receivers)
 
+    __nonzero__ = __bool__
+
     def __enter__(self):
         return self
 
diff --git a/tests/select_test.py b/tests/select_test.py
index d9345954..7e6256c8 100644
--- a/tests/select_test.py
+++ b/tests/select_test.py
@@ -6,6 +6,22 @@ import mitogen.select
 import testlib
 
 
+class BoolTest(testlib.RouterMixin, testlib.TestCase):
+    klass = mitogen.select.Select
+
+    def test_receiver(self):
+        recv = mitogen.core.Receiver(self.router)  # oneshot
+        select = self.klass()
+        self.assertFalse(select)
+        select.add(recv)
+        self.assertTrue(select)
+
+        recv._on_receive(mitogen.core.Message.pickled('123'))
+        self.assertTrue(select)
+        self.assertEquals('123', select.get().unpickle())
+        self.assertFalse(select)
+
+
 class AddTest(testlib.RouterMixin, testlib.TestCase):
     klass = mitogen.select.Select