diff --git a/eth/tracers/api_test.go b/eth/tracers/api_test.go
index 612fba5aa1..4ba56a512e 100644
--- a/eth/tracers/api_test.go
+++ b/eth/tracers/api_test.go
@@ -740,9 +740,9 @@ func newAccounts(n int) (accounts []Account) {
 	return accounts
 }
 
-func newRPCBalance(balance *big.Int) **hexutil.Big {
+func newRPCBalance(balance *big.Int) *hexutil.Big {
 	rpcBalance := (*hexutil.Big)(balance)
-	return &rpcBalance
+	return rpcBalance
 }
 
 func newRPCBytes(bytes []byte) *hexutil.Bytes {
@@ -750,7 +750,7 @@ func newRPCBytes(bytes []byte) *hexutil.Bytes {
 	return &rpcBytes
 }
 
-func newStates(keys []common.Hash, vals []common.Hash) *map[common.Hash]common.Hash {
+func newStates(keys []common.Hash, vals []common.Hash) map[common.Hash]common.Hash {
 	if len(keys) != len(vals) {
 		panic("invalid input")
 	}
@@ -758,7 +758,7 @@ func newStates(keys []common.Hash, vals []common.Hash) *map[common.Hash]common.H
 	for i := 0; i < len(keys); i++ {
 		m[keys[i]] = vals[i]
 	}
-	return &m
+	return m
 }
 
 func TestTraceChain(t *testing.T) {
diff --git a/internal/ethapi/api.go b/internal/ethapi/api.go
index 72301b5e2f..e78e2f21cc 100644
--- a/internal/ethapi/api.go
+++ b/internal/ethapi/api.go
@@ -532,11 +532,11 @@ func (s *BlockChainAPI) GetBlockReceipts(ctx context.Context, blockNrOrHash rpc.
 // if statDiff is set, all diff will be applied first and then execute the call
 // message.
 type OverrideAccount struct {
-	Nonce     *hexutil.Uint64              `json:"nonce"`
-	Code      *hexutil.Bytes               `json:"code"`
-	Balance   **hexutil.Big                `json:"balance"`
-	State     *map[common.Hash]common.Hash `json:"state"`
-	StateDiff *map[common.Hash]common.Hash `json:"stateDiff"`
+	Nonce     *hexutil.Uint64             `json:"nonce"`
+	Code      *hexutil.Bytes              `json:"code"`
+	Balance   *hexutil.Big                `json:"balance"`
+	State     map[common.Hash]common.Hash `json:"state"`
+	StateDiff map[common.Hash]common.Hash `json:"stateDiff"`
 }
 
 // StateOverride is the collection of overridden accounts.
@@ -558,18 +558,18 @@ func (diff *StateOverride) Apply(statedb *state.StateDB) error {
 		}
 		// Override account balance.
 		if account.Balance != nil {
-			statedb.SetBalance(addr, (*big.Int)(*account.Balance), tracing.BalanceChangeUnspecified)
+			statedb.SetBalance(addr, (*big.Int)(account.Balance), tracing.BalanceChangeUnspecified)
 		}
 		if account.State != nil && account.StateDiff != nil {
 			return fmt.Errorf("account %s has both 'state' and 'stateDiff'", addr.Hex())
 		}
 		// Replace entire state if caller requires.
 		if account.State != nil {
-			statedb.SetStorage(addr, *account.State)
+			statedb.SetStorage(addr, account.State)
 		}
 		// Apply state diff into specified accounts.
 		if account.StateDiff != nil {
-			for key, value := range *account.StateDiff {
+			for key, value := range account.StateDiff {
 				statedb.SetState(addr, key, value)
 			}
 		}