diff --git a/imap.go b/imap.go
index 8aaad6f..1e214c7 100644
--- a/imap.go
+++ b/imap.go
@@ -10,6 +10,7 @@ import (
 	"github.com/emersion/go-imap"
 	imapclient "github.com/emersion/go-imap/client"
 	"github.com/emersion/go-message"
+	_ "github.com/emersion/go-message/charset"
 	"github.com/emersion/go-message/textproto"
 )