diff --git a/Userland/Libraries/LibWeb/DOM/Document.cpp b/Userland/Libraries/LibWeb/DOM/Document.cpp
index dcbe736bc092b3..b6cd64091ee717 100644
--- a/Userland/Libraries/LibWeb/DOM/Document.cpp
+++ b/Userland/Libraries/LibWeb/DOM/Document.cpp
@@ -556,7 +556,7 @@ WebIDL::ExceptionOr<Document*> Document::open(Optional<String> const&, Optional<
     // If document belongs to a child navigable, we need to make sure its initial navigation is done,
     // because subsequent steps will modify "initial about:blank" to false, which would cause
     // initial navigation to fail in case it was "about:blank".
-    if (auto navigable = this->navigable(); navigable->container() && !navigable->container()->content_navigable_initialized()) {
+    if (auto navigable = this->navigable(); navigable && navigable->container() && !navigable->container()->content_navigable_initialized()) {
         HTML::main_thread_event_loop().spin_processing_tasks_with_source_until(HTML::Task::Source::NavigationAndTraversal, [navigable_container = navigable->container()] {
             return navigable_container->content_navigable_initialized();
         });