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-rw-r--r--lib/PublicInbox/View.pm1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/PublicInbox/View.pm b/lib/PublicInbox/View.pm
index b6fa2a3d..8e81391e 100644
--- a/lib/PublicInbox/View.pm
+++ b/lib/PublicInbox/View.pm
@@ -353,6 +353,7 @@ sub _msg_html_prepare {
                 $rv .= "$h: $v\n";
 
         }
+        $title[0] ||= '(no subject)';
         $ctx->{-title_html} = join(' - ', @title);
         $rv .= 'Message-ID: <' . $mid->as_html . '> ';
         $rv .= "(<a\nhref=\"raw\">raw</a>)\n";