diff --git a/client/ui/custom-elements/chat-video.ts b/client/ui/custom-elements/chat-video.ts
index 073c18d..36049b9 100644
--- a/client/ui/custom-elements/chat-video.ts
+++ b/client/ui/custom-elements/chat-video.ts
@@ -6,11 +6,10 @@ customElements.define('chat-video', class extends HTMLElement {
     }
     connectedCallback() {
         this.style.display = 'block'
-        const e = new DOMParser().parseFromString(`<video controls>視頻無法播放</video>`, 'text/html').body.firstChild as Node
+        const e = new DOMParser().parseFromString(`<video controls>視頻無法播放</video>`, 'text/html').body.firstChild as HTMLVideoElement
         e.style.width = "100%"
         e.style.height = "100%"
         e.style.borderRadius = "var(--mdui-shape-corner-medium)"
-        e.alt = $(this).attr('alt') || ""
         e.src = $(this).attr('src') as string
         this.appendChild(e)
     }