diff --git a/navigation-api/navigate-event/defer/tentative/restore-after-bfcache.html b/navigation-api/navigate-event/defer/tentative/restore-after-bfcache.html
index 8404241a7dce67..d787cf083058ee 100644
--- a/navigation-api/navigate-event/defer/tentative/restore-after-bfcache.html
+++ b/navigation-api/navigate-event/defer/tentative/restore-after-bfcache.html
@@ -19,7 +19,7 @@
       funcBeforeNavigation: async () => {
         window.events = [];
         await navigation.navigate("#1").finished;
-        await navigation.back();
+        await navigation.back().finished;
         window.originalEntry1 = navigation.entries()[1];
         window.originalEntry1.ondispose = () => events.push("dispose");
         window.onpageshow = () => events.push("pageshow");