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-rw-r--r--program/include/rcube_imap.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/program/include/rcube_imap.php b/program/include/rcube_imap.php
index 74454ca12..6ce683aa0 100644
--- a/program/include/rcube_imap.php
+++ b/program/include/rcube_imap.php
@@ -2502,7 +2502,7 @@ class rcube_imap
if (($p = array_search(strtolower($folder), $this->default_folders_lc)) !== false && !$a_defaults[$p])
$a_defaults[$p] = $folder;
else
- $folders[$folder] = mb_strtolower(rcube_charset_convert($folder, 'UTF-7'));
+ $folders[$folder] = rc_strtolower(rcube_charset_convert($folder, 'UTF-7'));
}
asort($folders, SORT_LOCALE_STRING);