diff --git a/pkg/lib/cockpit.d.ts b/pkg/lib/cockpit.d.ts
index 1621e22f9c14..492dcc57e11b 100644
--- a/pkg/lib/cockpit.d.ts
+++ b/pkg/lib/cockpit.d.ts
@@ -235,6 +235,7 @@ declare module 'cockpit' {
         readonly options: DBusOptions;
         proxy(interface?: string, path?: string, options?: { watch?: boolean }): DBusProxy;
         call(path: string, iface: string, method: string, args?: unknown[] | null, options?: DBusCallOptions): Promise<unknown[]>;
+        watch(path: string): DeferredPromise<void>,
         close(): void;
     }