diff --git a/packages/runtime-dom/__tests__/nodeOps.spec.ts b/packages/runtime-dom/__tests__/nodeOps.spec.ts
index 2573974c955..f1cba04de56 100644
--- a/packages/runtime-dom/__tests__/nodeOps.spec.ts
+++ b/packages/runtime-dom/__tests__/nodeOps.spec.ts
@@ -17,6 +17,20 @@ describe('runtime-dom: node-ops', () => {
     expect(option2.selected).toBe(true)
   })
 
+  test('create custom elements', () => {
+    const spyCreateElement = vi.spyOn(document, 'createElement')
+
+    nodeOps.createElement('custom-element', false)
+    expect(spyCreateElement).toHaveBeenLastCalledWith('custom-element')
+
+    nodeOps.createElement('custom-element', false, 'li')
+    expect(spyCreateElement).toHaveBeenLastCalledWith('custom-element', {
+      is: 'li'
+    })
+
+    spyCreateElement.mockClear()
+  })
+
   describe('insertStaticContent', () => {
     test('fresh insertion', () => {
       const content = `<div>one</div><div>two</div>three`
diff --git a/packages/runtime-dom/src/nodeOps.ts b/packages/runtime-dom/src/nodeOps.ts
index daf56fc6f3a..7afed27d9ce 100644
--- a/packages/runtime-dom/src/nodeOps.ts
+++ b/packages/runtime-dom/src/nodeOps.ts
@@ -21,7 +21,9 @@ export const nodeOps: Omit<RendererOptions<Node, Element>, 'patchProp'> = {
   createElement: (tag, isSVG, is, props): Element => {
     const el = isSVG
       ? doc.createElementNS(svgNS, tag)
-      : doc.createElement(tag, is ? { is } : undefined)
+      : is
+      ? doc.createElement(tag, { is })
+      : doc.createElement(tag)
 
     if (tag === 'select' && props && props.multiple != null) {
       ;(el as HTMLSelectElement).setAttribute('multiple', props.multiple)