diff --git a/doc/DISCLAIMER.md b/doc/DISCLAIMER.md
new file mode 100644
index 0000000..e69de29
diff --git a/scripts/backup b/scripts/backup
index a8156a5..652faa6 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -43,7 +43,7 @@ ynh_backup --src_path="$final_path"
 # BACKUP THE DATA DIR
 #=================================================
 
-ynh_backup --src_path="$calibre_dir" --is_big
+#ynh_backup --src_path="$calibre_dir" --is_big
 
 #=================================================
 # BACKUP THE NGINX CONFIGURATION
diff --git a/scripts/restore b/scripts/restore
index d5e3ab5..9136df8 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -28,6 +28,7 @@ domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
+calibre_dir=$(ynh_app_setting_get --app=$app --key=calibre_dir)
 
 #=================================================
 # CHECK IF THE APP CAN BE RESTORED
diff --git a/scripts/upgrade b/scripts/upgrade
index ca2af82..c0fde1b 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -58,7 +58,9 @@ ynh_script_progression --message="Ensuring downward compatibility..." --weight=1
 
 if [ ! -e "$calibre_dir" ]; then
 	ynh_print_info "Create calibre library folder $calibre_dir"
-	mkdir -p $calibre_dir
+	ynh_multimedia_build_main_dir
+    ynh_multimedia_addaccess $app
+    calibre_dir=/home/yunohost.multimedia/share/eBook
 	chown -R $app:www-data $calibre_dir
 fi