lib/PublicInbox/Mbox.pm | 4 +---

diff --git a/lib/PublicInbox/Mbox.pm b/lib/PublicInbox/Mbox.pm
index 0d67981f42a2e30e938f4ba3fa5ccf0f101f8087..9f20580e31f0ec6a888911e7056fdde30d2ede1d 100644
--- a/lib/PublicInbox/Mbox.pm
+++ b/lib/PublicInbox/Mbox.pm
@@ -67,9 +67,7 @@ 	# mboxrd quoting style
 	# ref: http://www.qmail.org/man/man5/mbox.html
 	$buf =~ s/^(>*From )/>$1/gm;
 
-	$buf .= "\n" unless $buf =~ /\n\z/s;
-
-	$fh->write($buf);
+	$fh->write($buf .= "\n");
 }
 
 sub emit_mbox {