lib/PublicInbox/NetReader.pm | 1 +

diff --git a/lib/PublicInbox/NetReader.pm b/lib/PublicInbox/NetReader.pm
index a5aab65024fedadf64ac6b04de12c9ac151a5a08..ccfdd26194a3f3056266411b70edb5a3441c1452 100644
--- a/lib/PublicInbox/NetReader.pm
+++ b/lib/PublicInbox/NetReader.pm
@@ -182,6 +182,7 @@ 		die "E: <$uri> $@\n" if $@;
 	} else {
 		$nn = Net::NNTP->new(%$nn_arg) or return;
 	}
+	setsockopt($nn, Socket::SOL_SOCKET(), Socket::SO_KEEPALIVE(), 1);
 
 	# default to using STARTTLS if it's available, but allow
 	# it to be disabled for localhost/VPN users