diff --git a/.travis.yml b/.travis.yml
index e740ab8..cf7d26c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,7 @@ before_script:
 script:
   - PATH=$PATH:/home/travis/.cargo/bin mdbook test
   - PATH=$PATH:/home/travis/.cargo/bin mdbook build
+  - cargo run --bin lfp src
 after_success:
   - test $TRAVIS_PULL_REQUEST == "false" && test $TRAVIS_BRANCH == "master" && bash deploy.sh
 env: