diff --git a/mysql-test/mysql-test-run.pl b/mysql-test/mysql-test-run.pl
index b6080538a61..e3b89707e57 100755
--- a/mysql-test/mysql-test-run.pl
+++ b/mysql-test/mysql-test-run.pl
@@ -783,7 +783,7 @@ sub set_mtr_build_thread_ports($) {
               "($opt_baseport - $opt_baseport + 9)");
   }
 
-  mtr_report("Using MR_BUILD_THREAD $opt_mtr_build_thread,",
+  mtr_report("Using MR_BUILD_THREAD $mtr_build_thread,",
 	     "with reserved ports $opt_baseport..".($opt_baseport+9));
 
 }