diff --git a/src/blot/abstract/parent.ts b/src/blot/abstract/parent.ts
index f94f283..03dbdb2 100644
--- a/src/blot/abstract/parent.ts
+++ b/src/blot/abstract/parent.ts
@@ -361,7 +361,7 @@ class ParentBlot extends ShadowBlot implements Parent {
     });
     addedNodes
       .filter((node) => {
-        return node.parentNode === this.domNode || node === this.uiNode;
+        return node.parentNode === this.domNode && node !== this.uiNode;
       })
       .sort((a, b) => {
         if (a === b) {
diff --git a/test/unit/parent.js b/test/unit/parent.js
index 62f898b..31ba6b9 100644
--- a/test/unit/parent.js
+++ b/test/unit/parent.js
@@ -81,6 +81,15 @@ describe('Parent', function () {
     }).not.toThrowError(/\[Parchment\]/);
   });
 
+  it('ignore added uiNode', function () {
+    this.scroll.appendChild(this.blot);
+    this.blot.attachUI(document.createElement('div'));
+    this.scroll.update();
+    expect(this.scroll.domNode.innerHTML).toEqual(
+      '<p><div contenteditable="false"></div>0<em>1<strong>2</strong><img></em>4</p>',
+    );
+  });
+
   it('allowedChildren', function () {
     this.scroll.domNode.innerHTML = '<p>A</p>B<span>C</span><p>D</p>';
     this.scroll.update();