diff --git a/cowprotocol/accounting/rewards/mainnet/service_fee_query_4017925.sql b/cowprotocol/accounting/rewards/mainnet/service_fee_query_4017925.sql
index 60487157..90dfa49e 100644
--- a/cowprotocol/accounting/rewards/mainnet/service_fee_query_4017925.sql
+++ b/cowprotocol/accounting/rewards/mainnet/service_fee_query_4017925.sql
@@ -124,7 +124,7 @@ latest_vouches as (
                 evt_block_number,
                 evt_index,
                 solver,
-                NULL as cow_reward_target, -- Invalidation does not have a reward target
+                null as cow_reward_target, -- Invalidation does not have a reward target
                 bonding_pool,
                 sender,
                 'InvalidateVouch' as event_type