diff --git a/vars/debian.yml b/vars/debian.yml
index 94610d47..677eacc4 100644
--- a/vars/debian.yml
+++ b/vars/debian.yml
@@ -26,3 +26,4 @@ horizon_apt_packages:
   - libxslt1.1
   - openssl
   - python-mysqldb # required by the Ansible mysql_db module
+  - gettext