diff --git a/mysql-test/columnstore/basic/t/MCOL-5886-use-of-partitioned-tables-in-crossengine-steps.test b/mysql-test/columnstore/basic/t/MCOL-5886-use-of-partitioned-tables-in-crossengine-steps.test
index fbd3b3041..2320e5848 100644
--- a/mysql-test/columnstore/basic/t/MCOL-5886-use-of-partitioned-tables-in-crossengine-steps.test
+++ b/mysql-test/columnstore/basic/t/MCOL-5886-use-of-partitioned-tables-in-crossengine-steps.test
@@ -6,6 +6,12 @@ DROP DATABASE IF EXISTS MCOL5886;
 CREATE DATABASE MCOL5886;
 USE MCOL5886;
 
+if (!$MASTER_MYPORT)
+{
+  # Running with --extern
+  let $MASTER_MYPORT=`SELECT @@port`;
+}
+
 --exec $MCS_MCSSETCONFIG CrossEngineSupport User 'cejuser'
 --exec $MCS_MCSSETCONFIG CrossEngineSupport Password 'Vagrant1|0000001'
 --exec $MCS_MCSSETCONFIG CrossEngineSupport Port $MASTER_MYPORT