diff --git a/scripts/upgrade b/scripts/upgrade
index 8418c00..ad523b7 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -40,6 +40,10 @@ fi
 
 ynh_backup_before_upgrade	# Backup the current version of the app
 ynh_clean_setup () {
+	# Delete any created temporary folder
+	if [ -v tmpdir ] && [ -d $tmpdir ]; then
+		ynh_secure_remove $tmpdir
+	fi
 	ynh_restore_upgradebackup	# restore it if the upgrade fails
 }
 ynh_abort_if_errors	# Active trap pour arrêter le script si une erreur est détectée.