diff --git a/.travis.yml b/.travis.yml
index 66c2b7207c..bf7c845acf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -32,6 +32,7 @@ addons:
       - texlive
       - sshpass
       - ghostscript
+      - libsaxonhe-java
   ssh_known_hosts: frs.sourceforge.net
 
 env: