diff --git a/ansible/roles/buildtools/defaults/main.yml b/ansible/roles/buildtools/defaults/main.yml
index b4776bb..9cca96e 100644
--- a/ansible/roles/buildtools/defaults/main.yml
+++ b/ansible/roles/buildtools/defaults/main.yml
@@ -1,3 +1,4 @@
 apt_packages:
   - maven
   - git=1:2.11*
+  - libxml-xpath-perl