diff --git a/packages/backend-plugin-api/report.api.md b/packages/backend-plugin-api/report.api.md
index a886ba4271..5db4a9a180 100644
--- a/packages/backend-plugin-api/report.api.md
+++ b/packages/backend-plugin-api/report.api.md
@@ -507,7 +507,10 @@ export interface RootHttpRouterService {
 }
 
 // @public
-export interface RootLifecycleService extends LifecycleService {}
+export interface RootLifecycleService extends LifecycleService {
+  // (undocumented)
+  addBeforeShutdownHook(hook: () => void): void;
+}
 
 // @public
 export interface RootLoggerService extends LoggerService {}