diff --git a/conf/backup_method b/conf/backup_method
index de6cb58..d172cc2 100644
--- a/conf/backup_method
+++ b/conf/backup_method
@@ -1,13 +1,12 @@
-#!/bin/bash
+#!/usr/bin/env bash
+set -Eeuo pipefail
 
-set -eo pipefail
-source __INSTALL_DIR__/venv/bin/activate
+source "__INSTALL_DIR__/venv/bin/activate"
+app="__APP__"
 
-app="${0#"./05-"}"
-app="${app%"_app"}"
+BORG_PASSPHRASE="$(yunohost app setting "$app" passphrase)"
+repo="$(yunohost app setting "$app" repository)"   #$4
 
-BORG_PASSPHRASE="$(yunohost app setting $app passphrase)"
-repo="$(yunohost app setting $app repository)"   #$4
 if ssh-keygen -F "__SERVER__" >/dev/null ; then
     BORG_RSH="ssh -i /root/.ssh/id_${app}_ed25519 -oStrictHostKeyChecking=yes "
 else
@@ -20,11 +19,10 @@ do_need_mount() {
 
 LOGFILE=/var/log/backup_borg.err
 log_with_timestamp() {
-  sed -e "s/^/[$(date +"%Y-%m-%d_%H:%M:%S")] /" | tee -a $LOGFILE
+    sed -e "s/^/[$(date +"%Y-%m-%d_%H:%M:%S")] /" | tee -a $LOGFILE
 }
 
 do_backup() {
-
     export BORG_PASSPHRASE
     export BORG_RSH
     export BORG_RELOCATED_REPO_ACCESS_IS_OK=yes
@@ -37,11 +35,11 @@ do_backup() {
     pushd "$work_dir"
     set +e
     if borg init -e repokey "$repo" ; then
-	    #human_size=`echo $size | awk '{ suffix=" KMGT"; for(i=1; $1>1024 && i < length(suffix); i++) $1/=1024; print int($1) substr(suffix, i, 1), $3; }'`
-	    # Speed in Kbps
-	    #speed=1000
-	    #evaluated_time=$(($size / ($speed * 1000 / 8) / 3600))
-	    echo "Hello,
+        # human_size=`echo $size | awk '{ suffix=" KMGT"; for(i=1; $1>1024 && i < length(suffix); i++) $1/=1024; print int($1) substr(suffix, i, 1), $3; }'`
+        # Speed in Kbps
+        # speed=1000
+        # evaluated_time=$(($size / ($speed * 1000 / 8) / 3600))
+        echo "Hello,
 
 Your first backup on $repo is starting.
 
@@ -88,7 +86,7 @@ case "$1" in
     do_backup "$work_dir" "$name" "$repo" "$size" "$description"
     ;;
   mount)
-    do_mount
+    do_mount "$work_dir" "$name" "$repo" "$size" "$description"
     ;;
   *)
     echo "hook called with unknown argument \`$1'" >&2