diff --git a/packages/ui-default/.npmignore b/packages/ui-default/.npmignore
index dbbea9c26..b6e90edf1 100644
--- a/packages/ui-default/.npmignore
+++ b/packages/ui-default/.npmignore
@@ -2,10 +2,8 @@ node_modules/
 .cache/
 /build/
 /common/
-/components/
-/constant/
-/misc/
+/misc/icons
+/misc/.iconfont
 /pages/
 /static/
-/utils/
 __*
diff --git a/packages/ui-default/package.json b/packages/ui-default/package.json
index a19b6e07a..6b5a61da7 100644
--- a/packages/ui-default/package.json
+++ b/packages/ui-default/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.58.0-beta.20",
+  "version": "4.58.0-beta.21",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "index.ts",
diff --git a/packages/ui-default/pages/problem_sidebar.page.ts b/packages/ui-default/pages/problem_sidebar.page.ts
index 6ce18e9a6..3b7ce9e55 100644
--- a/packages/ui-default/pages/problem_sidebar.page.ts
+++ b/packages/ui-default/pages/problem_sidebar.page.ts
@@ -32,7 +32,7 @@ const page = new NamedPage([
     try {
       const { url } = await request.post('.', {
         operation: 'copy',
-        pids: [UiContext.pdoc.docId],
+        pids: [UiContext.problemNumId],
         target: res.target,
         redirect: true,
       });