diff --git a/src/core.ts b/src/core.ts
index e1a93f272..68f1e676a 100644
--- a/src/core.ts
+++ b/src/core.ts
@@ -198,7 +198,7 @@ export abstract class APIClient {
     maxRetries = 2,
     timeout = 600000, // 10 minutes
     httpAgent,
-    fetch: overridenFetch,
+    fetch: overriddenFetch,
   }: {
     baseURL: string;
     maxRetries?: number | undefined;
@@ -211,7 +211,7 @@ export abstract class APIClient {
     this.timeout = validatePositiveInteger('timeout', timeout);
     this.httpAgent = httpAgent;
 
-    this.fetch = overridenFetch ?? fetch;
+    this.fetch = overriddenFetch ?? fetch;
   }
 
   protected authHeaders(opts: FinalRequestOptions): Headers {
diff --git a/tests/index.test.ts b/tests/index.test.ts
index f39571121..bf113e7bb 100644
--- a/tests/index.test.ts
+++ b/tests/index.test.ts
@@ -177,7 +177,7 @@ describe('instantiate client', () => {
     expect(client.apiKey).toBe('My API Key');
   });
 
-  test('with overriden environment variable arguments', () => {
+  test('with overridden environment variable arguments', () => {
     // set options via env var
     process.env['OPENAI_API_KEY'] = 'another My API Key';
     const client = new OpenAI({ apiKey: 'My API Key' });