diff --git a/server/sql/threads.sql b/server/sql/threads.sql
index 70f9a52..9e8b8b6 100644
--- a/server/sql/threads.sql
+++ b/server/sql/threads.sql
@@ -4,7 +4,9 @@ FROM
     post
 WHERE
     site = $1
+    AND (
+        NOT $2
+        OR NOT is_read
+    )
 ORDER BY
     date DESC
-LIMIT
-    10