diff --git a/src/add-ons/mail_daemon/inbound_protocols/imap/IMAPFolder.cpp b/src/add-ons/mail_daemon/inbound_protocols/imap/IMAPFolder.cpp
index e7a0f4b766..6cb060ad2c 100644
--- a/src/add-ons/mail_daemon/inbound_protocols/imap/IMAPFolder.cpp
+++ b/src/add-ons/mail_daemon/inbound_protocols/imap/IMAPFolder.cpp
@@ -86,6 +86,7 @@ private:
 IMAPFolder::IMAPFolder(IMAPProtocol& protocol, const BString& mailboxName,
 	const entry_ref& ref)
 	:
+	BHandler(mailboxName.String()),
 	fProtocol(protocol),
 	fRef(ref),
 	fMailboxName(mailboxName),