diff --git a/mysql-test/t/disabled.def b/mysql-test/t/disabled.def
index c36ac1bd168..5ea2c15caed 100644
--- a/mysql-test/t/disabled.def
+++ b/mysql-test/t/disabled.def
@@ -37,4 +37,5 @@ ndb_binlog_discover      : bug#21806 2006-08-24
 ndb_autodiscover3        : bug#21806
 
 flush2                   : Bug#24805 Pushbuild can't handle test with --disable-log-bin
+mysql_upgrade            : Bug#25074 mysql_upgrade gives inconsisten results