diff --git a/tox.ini b/tox.ini
index 198c01c..adddba8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,6 +2,9 @@
 envlist = pep8, pyflakes, py27
 
 [testenv]
+# Set STATSD env variables so that statsd code paths are tested.
+setenv = STATSD_HOST=localhost
+         STATSD_PORT=8125
 deps = -r{toxinidir}/tools/pip-requires
        -r{toxinidir}/tools/test-requires
 commands = nosetests {posargs}