diff --git a/.travis.yml b/.travis.yml
index e0a622cc..19ade6ae 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,7 @@ addons:
       - expect-dev  # provides unbuffer utility
       - python-lxml # because pip installation is slow
       - pdftk
+      - libreoffice
 
 language: python