diff --git a/.travis.yml b/.travis.yml
index 91b2db18..a5d88297 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,11 @@
+sudo: false
 language: python
 python:
   - "2.7"
   - "3.5"
   - "nightly"
-script: python -m unittest discover
+install: pip install tox-travis
+script: tox
 notifications:
   irc:
     channels:
diff --git a/tests/migrate/test_concat.py b/tests/migrate/test_concat.py
index 5ace475f..57de66f6 100644
--- a/tests/migrate/test_concat.py
+++ b/tests/migrate/test_concat.py
@@ -20,7 +20,7 @@
 
 class MockContext(unittest.TestCase):
     def get_source(self, path, key):
-        return self.strings.get(key, None).get_val()
+        return self.strings.get(key, None).val
 
 
 @unittest.skipUnless(PropertiesParser, 'compare-locales required')
diff --git a/tests/migrate/test_literal.py b/tests/migrate/test_literal.py
index 6d248613..55e78a20 100644
--- a/tests/migrate/test_literal.py
+++ b/tests/migrate/test_literal.py
@@ -15,7 +15,7 @@
 
 class MockContext(unittest.TestCase):
     def get_source(self, path, key):
-        return self.strings.get(key, None).get_val()
+        return self.strings.get(key, None).val
 
 
 @unittest.skipUnless(PropertiesParser, 'compare-locales required')
diff --git a/tests/migrate/test_merge.py b/tests/migrate/test_merge.py
index 8d987c29..fec6348d 100644
--- a/tests/migrate/test_merge.py
+++ b/tests/migrate/test_merge.py
@@ -18,7 +18,7 @@
 
 class MockContext(unittest.TestCase):
     def get_source(self, path, key):
-        return self.ab_cd_legacy.get(key, None).get_val()
+        return self.ab_cd_legacy.get(key, None).val
 
 
 @unittest.skipUnless(PropertiesParser and DTDParser,
diff --git a/tests/migrate/test_plural.py b/tests/migrate/test_plural.py
index 8f2770a4..8e3e3723 100644
--- a/tests/migrate/test_plural.py
+++ b/tests/migrate/test_plural.py
@@ -19,7 +19,7 @@ class MockContext(unittest.TestCase):
     plural_categories = ('one', 'other')
 
     def get_source(self, path, key):
-        return self.strings.get(key, None).get_val()
+        return self.strings.get(key, None).val
 
 
 @unittest.skipUnless(PropertiesParser, 'compare-locales required')
diff --git a/tests/migrate/test_replace.py b/tests/migrate/test_replace.py
index 9237877a..1157daf4 100644
--- a/tests/migrate/test_replace.py
+++ b/tests/migrate/test_replace.py
@@ -16,7 +16,7 @@
 
 class MockContext(unittest.TestCase):
     def get_source(self, path, key):
-        return self.strings.get(key, None).get_val()
+        return self.strings.get(key, None).val
 
 
 @unittest.skipUnless(PropertiesParser, 'compare-locales required')
diff --git a/tox.ini b/tox.ini
index f775d92b..6515f039 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,8 +1,11 @@
 [tox]
-envlist = py27, py36
+envlist = py27, py27-cl, py36
 skipsdist=True
 
 [testenv]
 setenv =
     PYTHONPATH = {toxinidir}
+deps =
+    cl: compare-locales
+
 commands=python -m unittest discover