1 files changed, 5 insertions, 2 deletions

diff --git a/Mailman/testing/test_bounces.py b/Mailman/testing/test_bounces.py
index 8756701e2..1e967ab71 100644
--- a/Mailman/testing/test_bounces.py
+++ b/Mailman/testing/test_bounces.py
@@ -22,6 +22,7 @@ import sys
 import email
 import unittest
 
+from paths import prefix
 from Mailman.Bouncers.BouncerAPI import Stop
 
 
@@ -147,7 +148,8 @@ class BounceTest(unittest.TestCase):
         for modname, file, addrs in self.DATA:
             module = 'Mailman.Bouncers.' + modname
             __import__(module)
-            fp = open(os.path.join('tests', 'bounces', file))
+            fp = open(os.path.join(prefix, 'Mailman', 'testing', 'bounces',
+                                   file))
             try:
                 msg = email.message_from_file(fp)
             finally:
@@ -167,7 +169,8 @@ class BounceTest(unittest.TestCase):
     def test_SMTP32_failure(self):
         from Mailman.Bouncers import SMTP32
         # This file has no X-Mailer: header
-        fp = open(os.path.join('tests', 'bounces', 'postfix_01.txt'))
+        fp = open(os.path.join(prefix, 'Mailman', 'testing', 'bounces',
+                              'postfix_01.txt'))
         try:
             msg = email.message_from_file(fp)
         finally: