diff --git a/.travis.yml b/.travis.yml
index f311db4..4dc41f0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,7 @@ python:
     - 2.7
     - 3.3
     - 3.4
+    - 3.5
     - pypy
     - pypy3
 install:
diff --git a/CHANGES.rst b/CHANGES.rst
index e97fe7c..6848934 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -4,6 +4,8 @@ Changes
 4.3.0 (unreleased)
 ------------------
 
+- Add support for Python 3.5.
+
 - Drop support for Python 2.6.
 
 
diff --git a/setup.py b/setup.py
index 9f7459a..cfe99c9 100644
--- a/setup.py
+++ b/setup.py
@@ -50,6 +50,7 @@ def read(*rnames):
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.3',
         'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: Implementation :: CPython',
         'Programming Language :: Python :: Implementation :: PyPy',
         'Natural Language :: English',
diff --git a/src/zope/error/tests.py b/src/zope/error/tests.py
index f910e4e..14e632c 100644
--- a/src/zope/error/tests.py
+++ b/src/zope/error/tests.py
@@ -63,7 +63,7 @@ def test_checkForEmptyLog(self):
         # Test Check Empty Log
         errUtility = ErrorReportingUtility()
         getProp = errUtility.getLogEntries()
-        self.failIf(getProp)
+        self.assertFalse(getProp)
 
     def test_checkProperties(self):
         # Test Properties test
diff --git a/tox.ini b/tox.ini
index c8ed586..6d74ef8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,7 +3,7 @@ envlist = py27,py33,py34,pypy,pypy3
 
 [testenv]
 commands =
-    python setup.py test -q
+    python setup.py -q test -q
 deps = 
     zope.testing
     six