diff --git a/coolamqp/exceptions.py b/coolamqp/exceptions.py
index 557fbea5e8ecc5bfcb7256e034154b048b8e3741..18a2028ddff1cb22931b3d26ef73ee1360d27987 100644
--- a/coolamqp/exceptions.py
+++ b/coolamqp/exceptions.py
@@ -1,7 +1,10 @@
 # coding=UTF-8
 from __future__ import absolute_import, division, print_function
 
-from coolamqp.framing.definitions import HARD_ERRORS
+from coolamqp.framing.definitions import HARD_ERRORS, RESOURCE_LOCKED
+
+
+__all__ ['HARD_ERRORS', 'RESOURCE_LOCKED', 'CoolAMQPError', 'ConnectionDead', 'AMQPError']
 
 
 class CoolAMQPError(Exception):