diff --git a/.travis.yml b/.travis.yml
index 0c227c7c..ec29399d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,5 +24,6 @@ script:
   - mkdir _build
   - cd _build
   - cmake .. -DCMAKE_INSTALL_PREFIX=../_install $OPTIONS
+  - cmake .. -L
   - cmake --build . --target install
   - ctest