diff --git a/core/state/state_object.go b/core/state/state_object.go
index 20da1006fc..7a7f6c04bd 100644
--- a/core/state/state_object.go
+++ b/core/state/state_object.go
@@ -154,6 +154,9 @@ func (self *StateObject) Update() {
 }
 
 func (c *StateObject) AddBalance(amount *big.Int) {
+	if amount.Cmp(common.Big0) == 0 {
+		return
+	}
 	c.SetBalance(new(big.Int).Add(c.balance, amount))
 
 	if glog.V(logger.Core) {
@@ -162,6 +165,9 @@ func (c *StateObject) AddBalance(amount *big.Int) {
 }
 
 func (c *StateObject) SubBalance(amount *big.Int) {
+	if amount.Cmp(common.Big0) == 0 {
+		return
+	}
 	c.SetBalance(new(big.Int).Sub(c.balance, amount))
 
 	if glog.V(logger.Core) {