diff --git a/packages/sdk38/src/secp256k1wallet.ts b/packages/sdk38/src/secp256k1wallet.ts
index c12382c8..ab50b477 100644
--- a/packages/sdk38/src/secp256k1wallet.ts
+++ b/packages/sdk38/src/secp256k1wallet.ts
@@ -12,7 +12,7 @@ import {
   xchacha20NonceLength,
   Xchacha20poly1305Ietf,
 } from "@cosmjs/crypto";
-import { fromBase64, fromHex, fromUtf8, toAscii, toBase64, toHex, toUtf8 } from "@cosmjs/encoding";
+import { fromBase64, fromHex, fromUtf8, toBase64, toHex, toUtf8 } from "@cosmjs/encoding";
 import { assert, isNonNullObject } from "@cosmjs/utils";
 
 import { rawSecp256k1PubkeyToAddress } from "./address";
@@ -21,6 +21,7 @@ import { StdSignature } from "./types";
 import {
   AccountData,
   Algo,
+  cosmjsSalt,
   executeKdf,
   KdfConfiguration,
   makeCosmoshubPath,
@@ -31,13 +32,6 @@ import {
 
 const serializationTypeV1 = "secp256k1wallet-v1";
 
-/**
- * A fixed salt is chosen to archive a deterministic password to key derivation.
- * This reduces the scope of a potential rainbow attack to all CosmJS users.
- * Must be 16 bytes due to implementation limitations.
- */
-const cosmjsSalt = toAscii("The CosmJS salt.");
-
 /**
  * A KDF configuration that is not very strong but can be used on the main thread.
  * It takes about 1 second in Node.js 12.15 and should have similar runtimes in other modern Wasm hosts.
diff --git a/packages/sdk38/src/wallet.ts b/packages/sdk38/src/wallet.ts
index d7b43262..7378636b 100644
--- a/packages/sdk38/src/wallet.ts
+++ b/packages/sdk38/src/wallet.ts
@@ -59,7 +59,7 @@ export function makeCosmoshubPath(a: number): readonly Slip10RawIndex[] {
  * This reduces the scope of a potential rainbow attack to all CosmJS users.
  * Must be 16 bytes due to implementation limitations.
  */
-const cosmjsSalt = toAscii("The CosmJS salt.");
+export const cosmjsSalt = toAscii("The CosmJS salt.");
 
 export interface KdfConfiguration {
   /**
diff --git a/packages/sdk38/types/wallet.d.ts b/packages/sdk38/types/wallet.d.ts
index 19fe5696..8075062c 100644
--- a/packages/sdk38/types/wallet.d.ts
+++ b/packages/sdk38/types/wallet.d.ts
@@ -23,6 +23,12 @@ export declare function prehash(bytes: Uint8Array, type: PrehashType): Uint8Arra
  * with 0-based account index `a`.
  */
 export declare function makeCosmoshubPath(a: number): readonly Slip10RawIndex[];
+/**
+ * A fixed salt is chosen to archive a deterministic password to key derivation.
+ * This reduces the scope of a potential rainbow attack to all CosmJS users.
+ * Must be 16 bytes due to implementation limitations.
+ */
+export declare const cosmjsSalt: Uint8Array;
 export interface KdfConfiguration {
   /**
    * An algorithm identifier, such as "argon2id" or "scrypt".