diff --git a/server/add_backuppc_host.sh b/server/add_backuppc_host.sh
index 7cb4289..fabd619 100755
--- a/server/add_backuppc_host.sh
+++ b/server/add_backuppc_host.sh
@@ -8,6 +8,12 @@
 #   /var/lib/backuppc/.ssh/config
 #   /var/lib/backuppc/.ssh/known_hosts
 
+#### HOW TO ####
+# scp file.pl backuppc.ipr.univ-rennes1.fr:
+# ssh backuppc.ipr.univ-rennes1.fr
+# cd /etc/backuppc
+# sudo ./add_backuppc_host.sh ~/pt-gilles.spm.univ-rennes1.fr.pl
+
 #### DÉPENDANCES ####
 # ldapsearch (pkg ldap-utils)
 if [ ! $(command -v ldapsearch) ]; then