diff --git a/.travis.yml b/.travis.yml
index 751ae79..15da06d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,4 +8,4 @@ install:
   - pip install pycodestyle
 # command to run tests
 script:
-  - find . -iname "*.py" -print0 | xargs -0 pycodestyle
+  - find . -iname "*.py" -print0 | xargs -0 pycodestyle --max-line-length 120