lib/PublicInbox/Msgmap.pm | 2 +-

diff --git a/lib/PublicInbox/Msgmap.pm b/lib/PublicInbox/Msgmap.pm
index a147b9f346d6ace41c580735b91825270225e271..6b6d1c6ee6086b8fd61ce4a04a45ab5b5619f961 100644
--- a/lib/PublicInbox/Msgmap.pm
+++ b/lib/PublicInbox/Msgmap.pm
@@ -57,7 +57,7 @@
 	$prev = $dbh->selectrow_array($sql, undef, $key);
 
 	if (defined $prev) {
-		$sql = 'UPDATE meta SET val = ? WHERE key = ? LIMIT 1';
+		$sql = 'UPDATE meta SET val = ? WHERE key = ?';
 		$dbh->do($sql, undef, $value, $key);
 	} else {
 		$sql = 'INSERT INTO meta (key,val) VALUES (?,?)';