1 files changed, 2 insertions, 1 deletions
diff --git a/nose/failure.py b/nose/failure.py
index d24401c..c5fabfd 100644
--- a/nose/failure.py
+++ b/nose/failure.py
@@ -1,6 +1,7 @@
 import logging
 import unittest
 from traceback import format_tb
+from nose.pyversion import is_base_exception
 
 log = logging.getLogger(__name__)
 
@@ -34,7 +35,7 @@ class Failure(unittest.TestCase):
     
     def runTest(self):
         if self.tb is not None:
-            if isinstance(self.exc_val, BaseException):
+            if is_base_exception(self.exc_val):
                 raise self.exc_val, None, self.tb
             raise self.exc_class, self.exc_val, self.tb
         else: