diff --git a/lib/filestorage/zip_archive.php b/lib/filestorage/zip_archive.php
index b346311be3a..f51facd2b3c 100644
--- a/lib/filestorage/zip_archive.php
+++ b/lib/filestorage/zip_archive.php
@@ -656,6 +656,7 @@ class zip_archive extends file_archive {
                             case 'ISO-8859-6': $encoding = 'CP720'; break;
                             case 'ISO-8859-7': $encoding = 'CP737'; break;
                             case 'ISO-8859-8': $encoding = 'CP862'; break;
+                            case 'EUC-JP':
                             case 'UTF-8':
                                 if ($winchar = get_string('localewincharset', 'langconfig')) {
                                     // Most probably works only for zh_cn,