diff --git a/lib/IMAP/ImapMessageFetcher.php b/lib/IMAP/ImapMessageFetcher.php
index b5f5b38d57..8f00ceecac 100644
--- a/lib/IMAP/ImapMessageFetcher.php
+++ b/lib/IMAP/ImapMessageFetcher.php
@@ -34,7 +34,6 @@
 use Horde_Imap_Client_Fetch_Query;
 use Horde_Imap_Client_Ids;
 use Horde_ListHeaders;
-use Horde_ListHeaders_Base;
 use Horde_Mime_Exception;
 use Horde_Mime_Headers;
 use Horde_Mime_Part;