diff --git a/src/vpoller/registry.py b/src/vpoller/registry.py
index ee94698..c259be7 100644
--- a/src/vpoller/registry.py
+++ b/src/vpoller/registry.py
@@ -38,6 +38,9 @@ class TaskRegistry(object):
     def __init__(self):
         self._registry = {}
 
+    def __contains__(self, item):
+        return item in self._registry
+
     def register(self, name, required, fn):
         """
         Register a new task