diff --git a/src/async/serializeAsync.ts b/src/async/serializeAsync.ts
index 78eb8772..f2e63c7f 100644
--- a/src/async/serializeAsync.ts
+++ b/src/async/serializeAsync.ts
@@ -1,6 +1,6 @@
 import { TsonCircularReferenceError } from "../errors.js";
 import { assert } from "../internals/assert.js";
-import { getNonce } from "../internals/getNonce.js";
+import { GetNonce, getNonceDefault } from "../internals/getNonce.js";
 import { mapOrReturn } from "../internals/mapOrReturn.js";
 import {
 	TsonAllTypes,
@@ -192,10 +192,9 @@ type TsonAsyncSerializer = <T>(
 export function createAsyncTsonSerialize(
 	opts: TsonAsyncOptions,
 ): TsonAsyncSerializer {
+	const getNonce: GetNonce = (opts.nonce ?? getNonceDefault) as GetNonce;
 	return (value) => {
-		const nonce: TsonNonce = opts.nonce
-			? (opts.nonce() as TsonNonce)
-			: getNonce();
+		const nonce = getNonce();
 		const [walk, iterator] = walkerFactory(nonce, opts.types);
 
 		return [
diff --git a/src/internals/getNonce.crypto.test.ts b/src/internals/getNonce.crypto.test.ts
index e57bd0ef..d5beeaba 100644
--- a/src/internals/getNonce.crypto.test.ts
+++ b/src/internals/getNonce.crypto.test.ts
@@ -6,9 +6,9 @@ test("with crypto", async () => {
 	global.crypto = {
 		randomUUID: () => "test",
 	} as any;
-	const { getNonce } = await import("./getNonce.js");
+	const { getNonceDefault } = await import("./getNonce.js");
 
-	expect(getNonce()).toBe("test");
+	expect(getNonceDefault()).toBe("test");
 
 	global.crypto = before;
 });
diff --git a/src/internals/getNonce.nocrypto.test.ts b/src/internals/getNonce.nocrypto.test.ts
index 42123fa0..db6d2511 100644
--- a/src/internals/getNonce.nocrypto.test.ts
+++ b/src/internals/getNonce.nocrypto.test.ts
@@ -5,9 +5,9 @@ test("without crypto", async () => {
 
 	global.crypto = undefined as any;
 
-	const { getNonce } = await import("./getNonce.js");
+	const { getNonceDefault } = await import("./getNonce.js");
 
-	expect(getNonce().length).toBeGreaterThan(20);
+	expect(getNonceDefault().length).toBeGreaterThan(20);
 
 	global.crypto = before;
 });
diff --git a/src/internals/getNonce.ts b/src/internals/getNonce.ts
index cdee3d6a..3d0ba006 100644
--- a/src/internals/getNonce.ts
+++ b/src/internals/getNonce.ts
@@ -4,7 +4,7 @@ const randomString = () => Math.random().toString(36).slice(2);
 
 export type GetNonce = () => TsonNonce;
 
-export const getNonce: GetNonce =
+export const getNonceDefault: GetNonce =
 	typeof crypto === "object" && typeof crypto.randomUUID === "function"
 		? () => crypto.randomUUID() as TsonNonce
 		: () =>
diff --git a/src/sync/serialize.ts b/src/sync/serialize.ts
index 0b33bdfa..49809a46 100644
--- a/src/sync/serialize.ts
+++ b/src/sync/serialize.ts
@@ -1,5 +1,5 @@
 import { TsonCircularReferenceError } from "../errors.js";
-import { GetNonce, getNonce } from "../internals/getNonce.js";
+import { GetNonce, getNonceDefault } from "../internals/getNonce.js";
 import { mapOrReturn } from "../internals/mapOrReturn.js";
 import {
 	TsonAllTypes,
@@ -38,9 +38,11 @@ function getHandlers(opts: TsonOptions) {
 		}
 	}
 
-	const nonceFn: GetNonce = opts.nonce ? (opts.nonce as GetNonce) : getNonce;
+	const getNonce: GetNonce = opts.nonce
+		? (opts.nonce as GetNonce)
+		: getNonceDefault;
 
-	return [nonceFn, nonPrimitives, byPrimitive] as const;
+	return [getNonce, nonPrimitives, byPrimitive] as const;
 }
 
 export function createTsonStringify(opts: TsonOptions): TsonStringifyFn {