diff --git a/consensus/bor/bor.go b/consensus/bor/bor.go
index 7f0e0a2cf2..d6d00211cf 100644
--- a/consensus/bor/bor.go
+++ b/consensus/bor/bor.go
@@ -882,7 +882,9 @@ func (c *Bor) changeContractCodeIfNeeded(headerNumber uint64, state *state.State
 			for addr, account := range allocs {
 				log.Info("change contract code", "address", addr)
 				state.SetCode(addr, account.Code)
-				state.SetBalance(addr, account.Balance)
+				if account.Balance == big.NewInt(0) {
+					state.SetBalance(addr, account.Balance)
+				}
 			}
 		}
 	}