diff --git a/src/middleware/originMiddleware.ts b/src/middleware/originMiddleware.ts
index 4be8777..865c4a8 100644
--- a/src/middleware/originMiddleware.ts
+++ b/src/middleware/originMiddleware.ts
@@ -39,7 +39,7 @@ export class OriginMiddleware implements Middleware {
       status: res.status,
       headers: {
         etag: res.headers.get('etag') ?? '',
-        'accept-range': res.headers.get('accept-range') ?? '',
+        'accept-ranges': res.headers.get('accept-ranges') ?? '',
         'access-control-allow-origin':
           res.headers.get('access-control-allow-origin') ?? '',
         expires: res.headers.get('expires') ?? '',
diff --git a/src/providers/provider.ts b/src/providers/provider.ts
index a9c5131..28eafcc 100644
--- a/src/providers/provider.ts
+++ b/src/providers/provider.ts
@@ -21,7 +21,7 @@ export interface Provider {
  */
 export type HttpResponseHeaders = {
   etag: string;
-  'accept-range': string;
+  'accept-ranges': string;
   'access-control-allow-origin': string;
   'cache-control': string;
   'cache-tag': string;
diff --git a/src/providers/r2Provider.ts b/src/providers/r2Provider.ts
index d8eb449..4c2bb31 100644
--- a/src/providers/r2Provider.ts
+++ b/src/providers/r2Provider.ts
@@ -161,7 +161,7 @@ function r2MetadataToHeaders(
   return {
     etag: object.httpEtag,
     'content-type': contentType,
-    'accept-range': 'bytes',
+    'accept-ranges': 'bytes',
     // https://github.com/nodejs/build/blob/e3df25d6a23f033db317a53ab1e904c953ba1f00/ansible/www-standalone/resources/config/nodejs.org?plain=1#L194-L196
     'access-control-allow-origin': object.key.endsWith('.json') ? '*' : '',
     'cache-control':