diff --git a/ios/web_view/internal/cwv_web_view.mm b/ios/web_view/internal/cwv_web_view.mm
index 0000000000..1111111111 100644
--- a/ios/web_view/internal/cwv_web_view.mm
+++ b/ios/web_view/internal/cwv_web_view.mm
@@ -506,6 +506,9 @@ static NSDictionary* gCustomHeaders = nil;
 }

 - (void)dealloc {
+  // CWVBackForwardList may outlive |self|; clear its raw pointer into
+  // |_webState| before ARC destroys the unique_ptr. Mirrors -shutDown.
+  _backForwardList.navigationManager = nil;
   if (_webState) {
     if (_webStateObserver) {
       _webState->RemoveObserver(_webStateObserver.get());