diff --git a/playbooks/install_morefine.yaml b/playbooks/install_morefine.yaml
index b4c7177..be3ebdd 100644
--- a/playbooks/install_morefine.yaml
+++ b/playbooks/install_morefine.yaml
@@ -1,6 +1,7 @@
 - hosts: morefine
   name: Install morefine
   become: true
+  ansible_become_method: su
   become_user: root
   tasks:
     - name: Install ldap packages