diff --git a/scripts/sys_schema/views/p_s/x_ps_schema_table_statistics_io.sql b/scripts/sys_schema/views/p_s/x_ps_schema_table_statistics_io.sql
index 8269ef8cc31726c177e96abbfe4928aa1fb49062..b079d0f7d919769b36c6ac57fbe9bcf11fdfb256 100644
--- a/scripts/sys_schema/views/p_s/x_ps_schema_table_statistics_io.sql
+++ b/scripts/sys_schema/views/p_s/x_ps_schema_table_statistics_io.sql
@@ -50,8 +50,8 @@ VIEW x$ps_schema_table_statistics_io (
   count_misc,
   sum_timer_misc
 ) AS
-SELECT extract_schema_from_file_name(file_name) AS table_schema,
-       extract_table_from_file_name(file_name) AS table_name,
+SELECT sys.extract_schema_from_file_name(file_name) AS table_schema,
+       sys.extract_table_from_file_name(file_name) AS table_name,
        SUM(count_read) AS count_read,
        SUM(sum_number_of_bytes_read) AS sum_number_of_bytes_read,
        SUM(sum_timer_read) AS sum_timer_read,