diff --git a/Libraries/LibWeb/DOM/Node.cpp b/Libraries/LibWeb/DOM/Node.cpp
index 4898728aefb..98a31d909d4 100644
--- a/Libraries/LibWeb/DOM/Node.cpp
+++ b/Libraries/LibWeb/DOM/Node.cpp
@@ -767,12 +767,6 @@ void Node::insert_before(GC::Ref<Node> node, GC::Ptr<Node> child, bool suppress_
             node->post_connection();
     }
 
-    if (is_connected()) {
-        // FIXME: This will need to become smarter when we implement the :has() selector.
-        invalidate_style(StyleInvalidationReason::ParentOfInsertedNode);
-        set_needs_layout_tree_update(true);
-    }
-
     document().bump_dom_tree_version();
 }
 
@@ -1411,6 +1405,7 @@ void Node::set_needs_style_update(bool value)
 
 void Node::post_connection()
 {
+    set_needs_layout_tree_update(true);
 }
 
 void Node::inserted()
diff --git a/Libraries/LibWeb/DOM/Node.h b/Libraries/LibWeb/DOM/Node.h
index 71cbbd9c552..11f20c2772c 100644
--- a/Libraries/LibWeb/DOM/Node.h
+++ b/Libraries/LibWeb/DOM/Node.h
@@ -88,7 +88,6 @@ enum class ShouldComputeRole {
     X(NodeRemove)                                   \
     X(NodeSetTextContent)                           \
     X(Other)                                        \
-    X(ParentOfInsertedNode)                         \
     X(SetSelectorText)                              \
     X(SettingsChange)                               \
     X(StyleSheetDeleteRule)                         \