lib/PublicInbox/WatchMaildir.pm | 2 +-

diff --git a/lib/PublicInbox/WatchMaildir.pm b/lib/PublicInbox/WatchMaildir.pm
index a3fab428fc3a4c14bfa3ef33fa4690bfabf20c8d..403b6cf951d8e1b4b18a7ad4a68615c410166f81 100644
--- a/lib/PublicInbox/WatchMaildir.pm
+++ b/lib/PublicInbox/WatchMaildir.pm
@@ -170,7 +170,7 @@
 sub _try_path {
 	my ($self, $path) = @_;
 	my @p = split(m!/+!, $path);
-	return if $p[-1] !~ /\A[a-zA-Z0-9][\w:,=\.]+\z/;
+	return if $p[-1] !~ /\A[a-zA-Z0-9][\-\w:,=\.]+\z/;
 	if ($p[-1] =~ /:2,([A-Z]+)\z/i) {
 		my $flags = $1;
 		return if $flags =~ /[DT]/; # no [D]rafts or [T]rashed mail