diff --git a/etc/schema/mysql/helper/functions.sql b/etc/schema/mysql/helper/functions.sql
index e5c57d89..1b1bf790 100644
--- a/etc/schema/mysql/helper/functions.sql
+++ b/etc/schema/mysql/helper/functions.sql
@@ -4,4 +4,5 @@ DROP FUNCTION IF EXISTS unix_timestamp_ms;
 
 CREATE FUNCTION unix_timestamp_ms()
   RETURNS BIGINT UNSIGNED
+  NO SQL
   RETURN FLOOR((UNIX_TIMESTAMP(NOW(3)) * 1000));