diff --git a/src/util/entities/Attachment.ts b/src/util/entities/Attachment.ts
index 5ba9f944..6aabc7c1 100644
--- a/src/util/entities/Attachment.ts
+++ b/src/util/entities/Attachment.ts
@@ -78,6 +78,7 @@ export class Attachment extends BaseClass {
 
 	signUrls(req: Request) {
 		return {
+			...this,
 			url: this.url + resignUrl(this.url, req),
 			proxy_url: this.proxy_url + resignUrl(this.proxy_url, req),
 		}