diff --git a/tasks.py b/tasks.py
index bcf086b..f1db0e4 100644
--- a/tasks.py
+++ b/tasks.py
@@ -63,6 +63,8 @@ def unique(fun):
             if has_lock:
                 r.delete(key)
 
+    return wrapper
+
 
 
 def noop(*args, **kwargs):