diff --git a/queries/dune_v2/period_block_interval.sql b/queries/dune_v2/period_block_interval.sql
index 8487d354..e6188d20 100644
--- a/queries/dune_v2/period_block_interval.sql
+++ b/queries/dune_v2/period_block_interval.sql
@@ -1,3 +1,4 @@
+-- https://github.com/cowprotocol/solver-rewards/pull/330
 -- V3: https://dune.com/queries/3333356
 with
   block_range_start as (