diff --git a/.dockerignore b/.dockerignore
index 203d8000f..0bdb9e62d 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,5 +1,5 @@
 # this file uses slightly different syntax than .gitignore,
-# e.g. ".tox/" will not ignore .tox directory
+# e.g. "tox.cover/" will not ignore tox.cover directory
 
 # well, official docker build should be done on clean git checkout
 # anyway, so .tox should be empty... But I'm sure people will try to
diff --git a/.travis.yml b/.travis.yml
index a7b03d20a..a9769ed78 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,7 +20,7 @@ env:
 install: "travis_retry pip install tox coveralls"
 before_script: '[ "${TOXENV:0:2}" != "py" ] || ./tests/boulder-start.sh'
 # TODO: eliminate substring slice bashism
-script: 'travis_retry tox && ([ "${TOXENV:0:2}" != "py" ] || (source .tox/$TOXENV/bin/activate && ./tests/boulder-integration.sh))'
+script: 'travis_retry tox && ([ "${TOXENV:0:2}" != "py" ] || (source tox.venv/$TOXENV/bin/activate && ./tests/boulder-integration.sh))'
 
 after_success: '[ "$TOXENV" == "cover" ] && coveralls'