diff --git a/mpipool/core.py b/mpipool/core.py
index 13a31e7..1937f1d 100644
--- a/mpipool/core.py
+++ b/mpipool/core.py
@@ -267,4 +267,5 @@ def _error_function(task):
 
 class MPIPoolException(Exception):
     def __init__(self, tb):
+        super(MPIPoolException, self).__init__(tb)
         self.traceback = tb