diff --git a/raven/contrib/async.py b/raven/contrib/async.py
index <HASH>..<HASH> 100644
--- a/raven/contrib/async.py
+++ b/raven/contrib/async.py
@@ -26,4 +26,4 @@ class AsyncClient(Client):
         super(AsyncClient, self).send(**kwargs)
 
     def send(self, **kwargs):
-        self.worker.queue(self.send_sync, kwargs)
+        self.worker.queue(self.send_sync, **kwargs)
fix send_sync function param error in raven.contrib.async