diff --git a/scripts/upgrade b/scripts/upgrade
index ff0d7e5..73aad75 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -38,18 +38,25 @@ upgrade_type=$(ynh_check_app_version_changed)
 #=================================================
 # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================
-# There is an issue in previous backup file in case of non public_key, so backup only in case of public_key
-if [ -n "$public_key" ]
+# There is an issue in previous backup file in case of non public_key, so we create the missing directory
+if [ ! -f "/etc/sudoers.d/$app-sudoers" ]
 then
+  touch "/etc/sudoers.d/$app-sudoers"
+fi
 
-  ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --weight=1
+ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --weight=1
 
-  # Backup the current version of the app
-  ynh_backup_before_upgrade
-  ynh_clean_setup () {
-    # Restore it if the upgrade fails
-    ynh_restore_upgradebackup
-  }
+# Backup the current version of the app
+ynh_backup_before_upgrade
+ynh_clean_setup () {
+  # Restore it if the upgrade fails
+  ynh_restore_upgradebackup
+}
+
+# Removes the directory created only for backup if not necessary
+if [ ! -n "$public_key" ]
+then
+  rm "/etc/sudoers.d/$app-sudoers"
 fi
 
 # Exit if an error occurs during the execution of the script