diff --git a/packages/rest/src/manager.ts b/packages/rest/src/manager.ts
index e80c94fcf..f0be03873 100644
--- a/packages/rest/src/manager.ts
+++ b/packages/rest/src/manager.ts
@@ -534,7 +534,7 @@ export function createRestManager(options: CreateRestManagerOptions): RestManage
 
     async makeRequest(method, route, options) {
       if (rest.isProxied) {
-        if (rest.authorization !== undefined) {
+        if (rest.authorization) {
           options ??= {}
           options.headers ??= {}
           options.headers[rest.authorizationHeader] = rest.authorization
diff --git a/packages/rest/src/types.ts b/packages/rest/src/types.ts
index 0052030ff..28acaea0a 100644
--- a/packages/rest/src/types.ts
+++ b/packages/rest/src/types.ts
@@ -154,12 +154,12 @@ export interface CreateRestManagerOptions {
      */
     baseUrl: string
     /** The authorization header value to attach when sending requests to the proxy. */
-    authorization: string
+    authorization?: string
     /**
      * The authorization header name to use when sending requests to the proxy
      *
      * @remarks
-     * If the `authorization` header is used it will override any authorization that is given even if
+     * If the header name is set to `authorization`, it will override any authorization that is given even if
      * the requests uses OAuth2 Bearer tokens / Basic tokens
      *
      * @default "authorization" // For compatibility purposes