diff --git a/packages/backend-common/api-report.md b/packages/backend-common/api-report.md
index 7e42157d8d..687139a023 100644
--- a/packages/backend-common/api-report.md
+++ b/packages/backend-common/api-report.md
@@ -717,7 +717,7 @@ export interface TokenManager {
 // @public
 export type UrlReader = {
   read(url: string): Promise<Buffer>;
-  readUrl?(url: string, options?: ReadUrlOptions): Promise<ReadUrlResponse>;
+  readUrl(url: string, options?: ReadUrlOptions): Promise<ReadUrlResponse>;
   readTree(url: string, options?: ReadTreeOptions): Promise<ReadTreeResponse>;
   search(url: string, options?: SearchOptions): Promise<SearchResponse>;
 };