diff --git a/sql/bigquery_billing_products_with_highest_aggregate_cost.sql b/sql/bigquery_billing_products_with_highest_aggregate_cost.sql
index f12a62ce..eb5f2ef5 100644
--- a/sql/bigquery_billing_products_with_highest_aggregate_cost.sql
+++ b/sql/bigquery_billing_products_with_highest_aggregate_cost.sql
@@ -2,7 +2,7 @@
 --  Author: Hari Sekhon
 --  Date: 2020-02-02 00:37:06 +0000 (Sun, 02 Feb 2020)
 --
---  vim:ts=2:sts=2:sw=2:et
+--  vim:ts=2:sts=2:sw=2:et:filetype=sql
 --
 --  https://github.com/harisekhon/bash-tools
 --