diff --git a/Libraries/LibCore/Object.cpp b/Libraries/LibCore/Object.cpp
index dc9028a533..6860510167 100644
--- a/Libraries/LibCore/Object.cpp
+++ b/Libraries/LibCore/Object.cpp
@@ -40,9 +40,8 @@ IntrusiveList<Object, &Object::m_all_objects_list_node>& Object::all_objects()
     return objects;
 }
 
-Object::Object(Object* parent, bool is_widget)
+Object::Object(Object* parent)
     : m_parent(parent)
-    , m_widget(is_widget)
 {
     all_objects().append(*this);
     if (m_parent)
diff --git a/Libraries/LibCore/Object.h b/Libraries/LibCore/Object.h
index 972895ebb8..c7fb49741d 100644
--- a/Libraries/LibCore/Object.h
+++ b/Libraries/LibCore/Object.h
@@ -117,8 +117,6 @@ public:
 
     void deferred_invoke(Function<void(Object&)>);
 
-    bool is_widget() const { return m_widget; }
-
     void save_to(AK::JsonObject&);
 
     bool set_property(const StringView& name, const JsonValue& value);
@@ -151,7 +149,7 @@ public:
     void decrement_inspector_count(Badge<RPCClient>);
 
 protected:
-    explicit Object(Object* parent = nullptr, bool is_widget = false);
+    explicit Object(Object* parent = nullptr);
 
     void register_property(const String& name, Function<JsonValue()> getter, Function<bool(const JsonValue&)> setter = nullptr);
 
@@ -169,7 +167,6 @@ private:
     String m_name;
     int m_timer_id { 0 };
     unsigned m_inspector_count { 0 };
-    bool m_widget { false };
     HashMap<String, NonnullOwnPtr<Property>> m_properties;
     NonnullRefPtrVector<Object> m_children;
 };
diff --git a/Libraries/LibGUI/ToolBarContainer.cpp b/Libraries/LibGUI/ToolBarContainer.cpp
index 8cbca228e2..717bfb34d4 100644
--- a/Libraries/LibGUI/ToolBarContainer.cpp
+++ b/Libraries/LibGUI/ToolBarContainer.cpp
@@ -37,10 +37,10 @@ void ToolBarContainer::child_event(Core::ChildEvent& event)
     Frame::child_event(event);
 
     if (event.type() == Core::Event::ChildAdded) {
-        if (event.child() && event.child()->is_widget())
+        if (event.child() && is<Widget>(event.child()))
             did_add_toolbar((Widget&)*event.child());
     } else if (event.type() == Core::Event::ChildRemoved) {
-        if (event.child() && event.child()->is_widget()) {
+        if (event.child() && is<Widget>(event.child())) {
             did_remove_toolbar((Widget&)*event.child());
         }
     }
diff --git a/Libraries/LibGUI/Widget.cpp b/Libraries/LibGUI/Widget.cpp
index 32edb2bd79..e35fc36536 100644
--- a/Libraries/LibGUI/Widget.cpp
+++ b/Libraries/LibGUI/Widget.cpp
@@ -130,7 +130,7 @@ const WidgetClassRegistration* WidgetClassRegistration::find(const String& class
 }
 
 Widget::Widget()
-    : Core::Object(nullptr, true)
+    : Core::Object(nullptr)
     , m_background_role(Gfx::ColorRole::Window)
     , m_foreground_role(Gfx::ColorRole::WindowText)
     , m_font(Gfx::FontDatabase::default_font())
@@ -197,7 +197,7 @@ void Widget::child_event(Core::ChildEvent& event)
 {
     if (event.type() == Event::ChildAdded) {
         if (event.child() && is<Widget>(*event.child()) && layout()) {
-            if (event.insertion_before_child() && event.insertion_before_child()->is_widget())
+            if (event.insertion_before_child() && is<Widget>(event.insertion_before_child()))
                 layout()->insert_widget_before(downcast<Widget>(*event.child()), downcast<Widget>(*event.insertion_before_child()));
             else
                 layout()->add_widget(downcast<Widget>(*event.child()));
@@ -853,7 +853,7 @@ Vector<Widget*> Widget::child_widgets() const
     Vector<Widget*> widgets;
     widgets.ensure_capacity(children().size());
     for (auto& child : const_cast<Widget*>(this)->children()) {
-        if (child.is_widget())
+        if (is<Widget>(child))
             widgets.append(static_cast<Widget*>(&child));
     }
     return widgets;