diff --git a/src/constants/coins.ts b/src/constants/coins.ts
index 43f70747..49c21898 100644
--- a/src/constants/coins.ts
+++ b/src/constants/coins.ts
@@ -3,6 +3,4 @@
  * 
  *  @category Constants
  */
-
-export const QI_COIN_TYPE = 969;
-export const QUAI_COIN_TYPE = 994;
\ No newline at end of file
+export type AllowedCoinType = 969 | 994;
\ No newline at end of file
diff --git a/src/constants/index.ts b/src/constants/index.ts
index c78ac459..a74fb74e 100644
--- a/src/constants/index.ts
+++ b/src/constants/index.ts
@@ -8,4 +8,4 @@ export { N, WeiPerEther, MaxUint256, MinInt256, MaxInt256 } from './numbers.js';
 export { quaisymbol, MessagePrefix } from './strings.js';
 export { toShard, Shard, ShardData } from './shards.js';
 export { toZone, Zone, ZoneData } from './zones.js';
-export { QI_COIN_TYPE, QUAI_COIN_TYPE } from './coins.js';
+export { AllowedCoinType } from './coins.js';
diff --git a/src/wallet/hdwallet.ts b/src/wallet/hdwallet.ts
index 6f9a8eef..acc73b88 100644
--- a/src/wallet/hdwallet.ts
+++ b/src/wallet/hdwallet.ts
@@ -6,6 +6,7 @@ import { randomBytes } from "../crypto/index.js";
 import { getZoneForAddress, isQiAddress } from "../utils/index.js";
 import { Zone } from '../constants/index.js';
 import { TransactionRequest, Provider, TransactionResponse } from '../providers/index.js';
+import { AllowedCoinType } from "../constants/index.js";
 
 export interface NeuteredAddressInfo {
 	pubKey: string;
@@ -20,7 +21,7 @@ export interface NeuteredAddressInfo {
 const MAX_ADDRESS_DERIVATION_ATTEMPTS = 10000000;
 
 export abstract class AbstractHDWallet {
-	protected static _coinType?: number = 969 || 994;
+	protected static _coinType?: AllowedCoinType;
 
     // Map of account number to HDNodeWallet
     protected _accounts: Map<number, HDNodeWallet> = new Map();
diff --git a/src/wallet/qi-hdwallet.ts b/src/wallet/qi-hdwallet.ts
index 62aceea7..8a7f88e2 100644
--- a/src/wallet/qi-hdwallet.ts
+++ b/src/wallet/qi-hdwallet.ts
@@ -12,7 +12,7 @@ import { keccak_256 } from '@noble/hashes/sha3';
 import { musigCrypto } from '../crypto/index.js';
 import { Outpoint } from '../transaction/utxo.js';
 import { getZoneForAddress } from '../utils/index.js';
-import { Zone } from '../constants/index.js';
+import { AllowedCoinType, Zone } from '../constants/index.js';
 
 type OutpointInfo = {
     outpoint: Outpoint;
@@ -25,7 +25,7 @@ export class QiHDWallet extends AbstractHDWallet {
 
     protected static _GAP_LIMIT: number = 20;
 
-    protected static _cointype: number = 969;
+    protected static _coinType: AllowedCoinType = 969;
 
 	// Map of change addresses to address info
 	protected _changeAddresses: Map<string, NeuteredAddressInfo> = new Map();
diff --git a/src/wallet/quai-hdwallet.ts b/src/wallet/quai-hdwallet.ts
index cfa76c9f..72a90c45 100644
--- a/src/wallet/quai-hdwallet.ts
+++ b/src/wallet/quai-hdwallet.ts
@@ -3,9 +3,10 @@ import { AbstractHDWallet } from './hdwallet';
 import { HDNodeWallet } from "./hdnodewallet";
 import { QuaiTransactionRequest, Provider, TransactionResponse } from '../providers/index.js';
 import { resolveAddress } from '../address/index.js';
+import { AllowedCoinType } from "../constants/index.js";
 
 export class QuaiHDWallet extends AbstractHDWallet {
-    protected static _cointype: number = 994;
+    protected static _coinType: AllowedCoinType = 994;
 
     private constructor(root: HDNodeWallet, provider?: Provider) {
         super(root, provider);