diff --git a/.travis.yml b/.travis.yml
index bee77d08304881c718483b88e1ea7e55228483e2..5c2ee51749eb4fcd4cebe27dd763647402480958 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,5 @@
 language: cpp
 cache: ccache
-sudo: required
 dist: xenial
 
 os:
@@ -18,11 +17,12 @@ addons:
       - clang-format-3.8
         
 before_install:
-  - sudo pip install cpplint pre-commit==1.10.3
+  - sudo pip install cpplint flake8 pre-commit==1.10.3
   - sudo ln -s /usr/bin/clang-format-3.8 /usr/bin/clang-format
   # Download and install recent cmake
 
 script:
+  - flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
   - | 
     function timeout() { perl -e 'alarm shift; exec @ARGV' "$@"; }
   - |