diff --git a/modoboa/extensions/webmail/lib/imaputils.py b/modoboa/extensions/webmail/lib/imaputils.py
index 7d34a75c8..f3572dea9 100644
--- a/modoboa/extensions/webmail/lib/imaputils.py
+++ b/modoboa/extensions/webmail/lib/imaputils.py
@@ -14,7 +14,7 @@ from django.utils.translation import ugettext as _
 
 from ..exceptions import ImapError, WebmailInternalError
 from .fetch_parser import parse_fetch_response
-from modoboa.lib import parameters
+from modoboa.lib import parameters, imap_utf7
 from modoboa.lib.connections import ConnectionsManager
 from modoboa.lib.exceptions import InternalError