diff --git a/pkg/types/account.go b/pkg/types/account.go
index b00c1a67f..e3f45a718 100644
--- a/pkg/types/account.go
+++ b/pkg/types/account.go
@@ -2,6 +2,7 @@ package types
 
 import (
 	"fmt"
+	"strings"
 	"sync"
 
 	"github.com/sirupsen/logrus"
@@ -25,6 +26,15 @@ func (b Balance) String() string {
 
 type BalanceMap map[string]Balance
 
+func (m BalanceMap) String() string {
+	var ss []string
+	for _, b := range m {
+		ss = append(ss, b.String())
+	}
+
+	return "BalanceMap[" + strings.Join(ss, ", ") + "]"
+}
+
 func (m BalanceMap) Print() {
 	for _, balance := range m {
 		if balance.Available == 0 && balance.Locked == 0 {