diff --git a/packages/theme/package.json b/packages/theme/package.json
index bfbdd2ec..5cbfcd81 100644
--- a/packages/theme/package.json
+++ b/packages/theme/package.json
@@ -65,5 +65,5 @@
   "publishConfig": {
     "access": "public"
   },
-  "gitHead": "6f0423366c8b337d5a561bcf7302bd648a8a3781"
+  "gitHead": "01136d273763630b68e6ac18b4bf1d42e3cf3ba7"
 }
diff --git a/packages/theme/src/node/prepared/sidebarIndex.ts b/packages/theme/src/node/prepared/sidebarIndex.ts
index a0855ef8..d74d39cb 100644
--- a/packages/theme/src/node/prepared/sidebarIndex.ts
+++ b/packages/theme/src/node/prepared/sidebarIndex.ts
@@ -115,7 +115,7 @@ function sidebarByConfig(
       } as SidebarItem
     } else {
       dir = path.join(dir, sidebar.dir || '')
-      link = path.join(link, sidebar.link)
+      link = path.join(link || '', sidebar.link || '')
       const current = sidebar.link
         ? findNotePage(sidebar.link, dir, notePageList)
         : undefined