diff --git a/components/header.js b/components/header.js
index 8b3d6fa..93ebe1e 100644
--- a/components/header.js
+++ b/components/header.js
@@ -230,21 +230,26 @@ export class Header extends HTMLElement {
       const confirmBtn = document.createElement('button')
       confirmBtn.innerText = this.text.rename
       confirmBtn.style.marginLeft = '3px'
+      let errorEl
       confirmBtn.addEventListener('click', () => {
         const newPath = input.value
-        const exists = localStorage.getItem(newPath)
-        if (exists ?? true === true) {
+        const v = localStorage.getItem(newPath)
+        if (v !== null || newPath === this.path) {
+          if (!errorEl) {
+            errorEl = document.createElement('p')
+            errorEl.style.color = 'red'
+            errorEl.innerText = this.text.alreadyExists
+            dialog.bodyEl.appendChild(errorEl)
+          }
           return
         }
-        if (newPath !== this.path) {
-          localStorage.setItem(
-            newPath,
-            localStorage.getItem(this.path)
-          )
-          localStorage.removeItem(this.path)
-          window.location.hash = newPath
-          dialog.close()
-        }
+        localStorage.setItem(
+          newPath,
+          localStorage.getItem(this.path)
+        )
+        localStorage.removeItem(this.path)
+        dialog.close()
+        location.hash = newPath
       })
       dialog.footerEl.replaceChildren(
         cancelBtn, confirmBtn
@@ -269,7 +274,7 @@ export class Header extends HTMLElement {
       confirmBtn.style.marginLeft = '3px'
       confirmBtn.addEventListener('click', () => {
         localStorage.removeItem(this.path)
-        window.location.hash = '/'
+        location.hash = '/'
         dialog.close()
       })
       dialog.footerEl.replaceChildren(
@@ -333,17 +338,7 @@ export class Header extends HTMLElement {
     confirmBtn.style.marginLeft = '3px'
     confirmBtn.addEventListener('click', () => {
       const newPath = this.encodePath(input.value)
-      const exists = localStorage.getItem(newPath)
-      if (exists ?? true === true) {
-        return
-      }
-      if (newPath !== this.path) {
-        localStorage.setItem(
-          newPath,
-          ''
-        )
-      }
-      window.location.hash = newPath
+      location.hash = newPath
       dialog.close()
     })
     dialog.footerEl.replaceChildren(
diff --git a/sw.js b/sw.js
index 66b682c..e95294d 100644
--- a/sw.js
+++ b/sw.js
@@ -10,7 +10,7 @@ async function initCache() {
     '/components/nav-menu.js',
     '/components/page-menu.js',
     '/components/dialog.js',
-  ]) //5
+  ]) //6
 }
 
 self.addEventListener("install", event => {