.RE
.TP
-.BR restore " <filename>"
+.BR restore " [--accumulate] [<filename>]"
Restores the tags from the given file (see
.BR "notmuch dump" ")."
.B "notmuch restore"
command provides you a way to import all of your tags (or labels as
sup calls them).
+
+The --accumulate switch causes the union of the existing and new tags to be
+applied, instead of replacing each message's tags as they are read in from the
+dump file.
.RE
The