diff --git a/web3.js/module.d.ts b/web3.js/module.d.ts
index 66ce6f0d7..fbeba9eae 100644
--- a/web3.js/module.d.ts
+++ b/web3.js/module.d.ts
@@ -265,6 +265,8 @@ declare module '@solana/web3.js' {
     feeCalculator: FeeCalculator;
   }
 
+  export const NONCE_ACCOUNT_LENGTH: number;
+
   // === src/validator-info.js ===
   export const VALIDATOR_INFO_KEY: PublicKey;
   export type Info = {
diff --git a/web3.js/module.flow.js b/web3.js/module.flow.js
index 00a967c3f..92f024581 100644
--- a/web3.js/module.flow.js
+++ b/web3.js/module.flow.js
@@ -278,6 +278,8 @@ declare module '@solana/web3.js' {
     feeCalculator: FeeCalculator;
   }
 
+  declare export var NONCE_ACCOUNT_LENGTH: number;
+
   // === src/validator-info.js ===
   declare export var VALIDATOR_INFO_KEY;
   declare export type Info = {|