diff --git a/packages-private/vapor-e2e-test/interop/VaporComp.vue b/packages-private/vapor-e2e-test/interop/VaporComp.vue
index 88a60c782c0..f0156544919 100644
--- a/packages-private/vapor-e2e-test/interop/VaporComp.vue
+++ b/packages-private/vapor-e2e-test/interop/VaporComp.vue
@@ -27,7 +27,8 @@ const slotProp = ref('slot prop')
         change slot prop
       </button>
       <div class="vdom-slot-in-vapor-default">
-        #default: <slot :foo="slotProp" />
+        #default:
+        <slot :foo="slotProp" />
       </div>
       <div class="vdom-slot-in-vapor-test">
         #test: <slot name="test">fallback content</slot>
@@ -40,7 +41,7 @@ const slotProp = ref('slot prop')
     >
       Toggle default slot to vdom
     </button>
-    <VdomComp :msg="msg">
+    <VdomComp :msg="msg" class="foo">
       <template #default="{ foo }" v-if="passSlot">
         <div>slot prop: {{ foo }}</div>
         <div>component prop: {{ msg }}</div>
diff --git a/packages/runtime-vapor/src/vdomInterop.ts b/packages/runtime-vapor/src/vdomInterop.ts
index 77228fd72a0..31f462e94ab 100644
--- a/packages/runtime-vapor/src/vdomInterop.ts
+++ b/packages/runtime-vapor/src/vdomInterop.ts
@@ -151,7 +151,7 @@ function createVDOMComponent(
   const frag = new VaporFragment([])
   const vnode = createVNode(
     component,
-    rawProps && new Proxy(rawProps, rawPropsProxyHandlers),
+    rawProps && extend({}, new Proxy(rawProps, rawPropsProxyHandlers)),
   )
   const wrapper = new VaporComponentInstance(
     { props: component.props },