diff --git a/Makefile b/Makefile
index 8054ee2c..0db4c0b6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,71 +1,71 @@
 PYTHON = python -Werror
 PYFLAKES = pyflakes
 PEP8 = pep8
 FLAKE8 ?= flake8
 SETUP = $(PYTHON) setup.py
 PYDOCTOR ?= pydoctor
 TESTRUNNER ?= unittest
 RUNTEST = PYTHONHASHSEED=random PYTHONPATH=$(shell pwd)$(if $(PYTHONPATH),:$(PYTHONPATH),) $(PYTHON) -m $(TESTRUNNER) $(TEST_OPTIONS)
 COVERAGE = python3-coverage
 
 DESTDIR=/
 
 all: build
 
 doc:: pydoctor
 doc:: sphinx
 
 sphinx::
 	$(MAKE) -C docs html
 
 pydoctor::
 	$(PYDOCTOR) --make-html -c dulwich.cfg
 
 build::
 	$(SETUP) build
 	$(SETUP) build_ext -i
 
 install::
 	$(SETUP) install --root="$(DESTDIR)"
 
 check:: build
 	$(RUNTEST) dulwich.tests.test_suite
 
 check-tutorial:: build
 	$(RUNTEST) dulwich.tests.tutorial_test_suite
 
 check-nocompat:: build
 	$(RUNTEST) dulwich.tests.nocompat_test_suite
 
 check-compat:: build
 	$(RUNTEST) dulwich.tests.compat_test_suite
 
 check-pypy:: clean
 	$(MAKE) check-noextensions PYTHON=pypy
 
 check-noextensions:: clean
 	$(RUNTEST) dulwich.tests.test_suite
 
 check-all: check check-pypy check-noextensions
 
 clean::
 	$(SETUP) clean --all
 	rm -f dulwich/*.so
 
 flakes:
 	$(PYFLAKES) dulwich
 
 pep8:
 	$(PEP8) dulwich
 
 style:
-	$(FLAKE8) --exclude=build,.git,build-pypy,.tox
+	$(FLAKE8)
 
 before-push: check
 	git diff origin/master | $(PEP8) --diff
 
 coverage:
 	$(COVERAGE) run -m unittest dulwich.tests.test_suite dulwich.contrib.test_suite
 
 coverage-html: coverage
 	$(COVERAGE) html
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 00000000..6f815c04
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,2 @@
+[flake8]
+exclude = build,.git,build-pypy,.tox