diff --git a/mysql-test/columnstore/basic/t/mcs271_substring_index_function.test b/mysql-test/columnstore/basic/t/mcs271_substring_index_function.test
index 9ae4e0409..478b73def 100644
--- a/mysql-test/columnstore/basic/t/mcs271_substring_index_function.test
+++ b/mysql-test/columnstore/basic/t/mcs271_substring_index_function.test
@@ -3,6 +3,7 @@
 # Author: Bharath, bharath.bokka@mariadb.com
 #
 -- source ../include/have_columnstore.inc
+--source ../include/charset.inc
 
 --disable_warnings
 DROP DATABASE IF EXISTS mcs271_db;