diff --git a/go/vt/vttablet/tabletserver/tx_pool.go b/go/vt/vttablet/tabletserver/tx_pool.go
index 44b07e125ef..0c47f93f33c 100644
--- a/go/vt/vttablet/tabletserver/tx_pool.go
+++ b/go/vt/vttablet/tabletserver/tx_pool.go
@@ -178,7 +178,7 @@ func (axp *TxPool) RollbackNonBusy(ctx context.Context) {
 
 func (axp *TxPool) transactionKiller() {
 	defer tabletenv.LogError()
-	for _, v := range axp.activePool.GetOutdated(time.Duration(axp.Timeout()), "for rollback") {
+	for _, v := range axp.activePool.GetOutdated(time.Duration(axp.Timeout()), "for tx killer rollback") {
 		conn := v.(*TxConnection)
 		log.Warningf("killing transaction (exceeded timeout: %v): %s", axp.Timeout(), conn.Format(nil))
 		tabletenv.KillStats.Add("Transactions", 1)