diff --git a/.travis/after_success.sh b/.travis/after_success.sh
index 415224f48..136dbdc8e 100755
--- a/.travis/after_success.sh
+++ b/.travis/after_success.sh
@@ -13,14 +13,16 @@ coverage report
 pip install coveralls-merge
 coveralls-merge coverage.c.json
 
-if [ "$TRAVIS_PYTHON_VERSION" == "2.7" ] && [ "$DOCKER" == "" ]; then
+if [ "$DOCKER" == "" ]; then
 	pip install pep8 pyflakes
 	pep8 --statistics --count PIL/*.py
 	pep8 --statistics --count Tests/*.py
 	pyflakes *.py       | tee >(wc -l)
 	pyflakes PIL/*.py   | tee >(wc -l)
 	pyflakes Tests/*.py | tee >(wc -l)
+fi
 
+if [ "$TRAVIS_PYTHON_VERSION" == "2.7" ] && [ "$DOCKER" == "" ]; then
 	# Coverage and quality reports on just the latest diff.
 	# (Installation is very slow on Py3, so just do it for Py2.)
 	depends/diffcover-install.sh