diff --git a/.travis.yml b/.travis.yml
index 7e86447..d79e79c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,7 @@ sudo: true
 install:
 - sudo apt-get -y update
 - sudo apt-get -y install build-essential gcc-multilib cmake python python-pip python-setuptools libffi-dev
+- pip2 install pyflakes --user
 - pip2 install angr==7.8.9.26 --user
 - pip2 install https://github.com/trailofbits/manticore/archive/last_python2.zip --user
 - mkdir build