diff --git a/package.json b/package.json
index 4cd8cd5..b20f943 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "vuepress-plugin-one-click-copy": "^1.0.2",
     "vuepress-plugin-thirdparty-search": "^1.0.2",
     "vuepress-plugin-zooming": "^1.1.7",
-    "vuepress-theme-vdoing": "^1.11.0",
+    "vuepress-theme-vdoing": "^1.11.1",
     "yamljs": "^0.3.0"
   }
 }
diff --git a/vdoing/package.json b/vdoing/package.json
index bdb8b74..c4e09e7 100644
--- a/vdoing/package.json
+++ b/vdoing/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vuepress-theme-vdoing",
-  "version": "1.11.0",
+  "version": "1.11.1",
   "description": "Vdoing theme for VuePress. 一个基于VuePress的知识管理兼博客主题。",
   "author": {
     "name": "gaoyi(Evan) Xu"
diff --git a/vdoing/util/index.js b/vdoing/util/index.js
index e5ba52b..34ef876 100644
--- a/vdoing/util/index.js
+++ b/vdoing/util/index.js
@@ -10,7 +10,7 @@ export function normalize(path) {
 }
 
 export function getHash(path) {
-  const match = path?.match(hashRE)
+  const match = path ? path.match(hashRE) : ''
   if (match) {
     return match[0]
   }