1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index a1fefdd0e1..b568029a20 100644
--- a/tox.ini
+++ b/tox.ini
@@ -15,4 +15,4 @@
 
 [pep8]
 max-line-length=100
-exclude=cloudpickle.py
+exclude=cloudpickle.py,heapq3.py