diff --git a/packages/runtime-dom/__tests__/patchProps.spec.ts b/packages/runtime-dom/__tests__/patchProps.spec.ts
index 962d55e882b..bec0f9ba342 100644
--- a/packages/runtime-dom/__tests__/patchProps.spec.ts
+++ b/packages/runtime-dom/__tests__/patchProps.spec.ts
@@ -149,4 +149,11 @@ describe('runtime-dom: props patching', () => {
     patchProp(el, 'form', 'foo', null)
     expect(el.getAttribute('form')).toBe(null)
   })
+
+  test('readonly type prop on textarea', () => {
+    const el = document.createElement('textarea')
+    // just to verify that it doesn't throw when i.e. switching a dynamic :is from an 'input' to a 'textarea'
+    // see https://github.com/vuejs/vue-next/issues/2766
+    patchProp(el, 'type', 'text', null)
+  })
 })
diff --git a/packages/runtime-dom/src/patchProp.ts b/packages/runtime-dom/src/patchProp.ts
index 848ee160a8b..6842b98c2b0 100644
--- a/packages/runtime-dom/src/patchProp.ts
+++ b/packages/runtime-dom/src/patchProp.ts
@@ -115,5 +115,10 @@ function shouldSetAsProp(
     return false
   }
 
+  // DOMprop "type" is readonly on textarea elements: https://github.com/vuejs/vue-next/issues/2766
+  if (key === 'type' && el.tagName === 'TEXTAREA') {
+    return false
+  }
+
   return key in el
 }