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-rw-r--r--program/include/rcube_addressbook.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/program/include/rcube_addressbook.php b/program/include/rcube_addressbook.php
index 10477e8a1..e4deea1d1 100644
--- a/program/include/rcube_addressbook.php
+++ b/program/include/rcube_addressbook.php
@@ -411,7 +411,7 @@ abstract class rcube_addressbook
array('ß' => 'ss', 'ae' => 'a', 'oe' => 'o', 'ue' => 'u')));
}
else
- $arr[$i] = strtolower($part);
+ $arr[$i] = mb_strtolower($part);
}
return join(" ", $arr);