Restore Site using Updraft Plus Backup files dasn't work properly

Updraft Plus makes Backup of all Site tables, plugins, and uploads but not of ahm_files-table, because WP prefix “wp_” is missing in the name of table. After restoring Site from such backup file, all entries from ahm_files-table are loosed. Manual reinstallation of ahm_files-table is needed.
Using standard WP prefix for ahm_files-table would solve this problem.