diff --git a/data/helpers.d/backend b/data/helpers.d/backend
index db7f94d4f..305c016ad 100644
--- a/data/helpers.d/backend
+++ b/data/helpers.d/backend
@@ -442,7 +442,7 @@ EOF
   ynh_store_file_checksum "$finalfail2banjailconf"
   ynh_store_file_checksum "$finalfail2banfilterconf"
 
-  systemctl try-reload-or-restart fail2ban
+  ynh_systemd_action --service_name=fail2ban --action=reload
 
   local fail2ban_error="$(journalctl -u fail2ban | tail -n50 | grep "WARNING.*$app.*")"
   if [[ -n "$fail2ban_error" ]]; then
@@ -459,5 +459,5 @@ EOF
 ynh_remove_fail2ban_config () {
   ynh_secure_remove "/etc/fail2ban/jail.d/$app.conf"
   ynh_secure_remove "/etc/fail2ban/filter.d/$app.conf"
-  systemctl try-reload-or-restart fail2ban
+  ynh_systemd_action --service_name=fail2ban --action=reload
 }
diff --git a/data/helpers.d/psql b/data/helpers.d/psql
index b36129041..8e3297458 100644
--- a/data/helpers.d/psql
+++ b/data/helpers.d/psql
@@ -280,7 +280,7 @@ ynh_psql_test_if_first_run() {
 			ynh_die "postgresql shoud be 9.4 or 9.6"
 		fi
 
-		systemctl start postgresql
+		ynh_systemd_action --service_name=postgresql --action=start
 
 		sudo --login --user=postgres psql -c"ALTER user postgres WITH PASSWORD '$pgsql'" postgres
 
@@ -294,6 +294,6 @@ ynh_psql_test_if_first_run() {
 		yunohost service add postgresql --log "$logfile"
 
 		systemctl enable postgresql
-		systemctl reload postgresql
+		ynh_systemd_action --service_name=postgresql --action=reload
 	fi
 }