diff --git a/.travis.yml b/.travis.yml
index 526f8d284..6a72a72d7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,7 @@ python:
 - "3.6"
 before_install:
 - sudo pip install -r requirements.txt
+- pip install flake8
 script:
 - python scripts/lint.py
 - python scripts/readme.py