diff --git a/plugins/azure-sites-backend/api-report.md b/plugins/azure-sites-backend/api-report.md
index 900a14fbc2..04cd22596a 100644
--- a/plugins/azure-sites-backend/api-report.md
+++ b/plugins/azure-sites-backend/api-report.md
@@ -62,7 +62,7 @@ export interface RouterOptions {
   // (undocumented)
   logger: Logger;
   // (undocumented)
-  permissions?: PermissionEvaluator;
+  permissions: PermissionEvaluator;
 }
 
 // (No @packageDocumentation comment for this package)
diff --git a/plugins/azure-sites-backend/src/service/router.ts b/plugins/azure-sites-backend/src/service/router.ts
index 662332344b..9ed198cc20 100644
--- a/plugins/azure-sites-backend/src/service/router.ts
+++ b/plugins/azure-sites-backend/src/service/router.ts
@@ -38,7 +38,7 @@ export interface RouterOptions {
   logger: Logger;
   azureSitesApi: AzureSitesApi;
   catalogApi: CatalogApi;
-  permissions?: PermissionEvaluator;
+  permissions: PermissionEvaluator;
 }
 
 /** @public */