diff --git a/setup.cfg b/setup.cfg
index 308548f..f1b8193 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -8,6 +8,9 @@ warning-is-error = 1
 [check]
 strict = 1
 
+[flake8]
+exclude = build,env,.eggs
+
 [nosetests]
 cover-branches = 1
 cover-erase = 1