diff --git a/lib/plugins/filter/before_exit/save_database.ts b/lib/plugins/filter/before_exit/save_database.ts
index 9a853eb93e..7c180edfd6 100644
--- a/lib/plugins/filter/before_exit/save_database.ts
+++ b/lib/plugins/filter/before_exit/save_database.ts
@@ -1,6 +1,6 @@
 import type Hexo from '../../../hexo';
 
-function saveDatabaseFilter(this: Hexo) {
+function saveDatabaseFilter(this: Hexo): Promise<void> {
   if (!this.env.init || !this._dbLoaded) return;
 
   return this.database.save().then(() => {
diff --git a/lib/plugins/tag/asset_img.ts b/lib/plugins/tag/asset_img.ts
index 8a9941b74a..cc68a3c4a3 100644
--- a/lib/plugins/tag/asset_img.ts
+++ b/lib/plugins/tag/asset_img.ts
@@ -18,6 +18,7 @@ export = (ctx: Hexo) => {
     for (let i = 0; i < len; i++) {
       const asset = PostAsset.findOne({post: this._id, slug: args[i]});
       if (asset) {
+        // img tag will call url_for so no need to call it here
         args[i] = encodeURL(new URL(asset.path, ctx.config.url).pathname);
         return img(ctx)(args);
       }
diff --git a/lib/plugins/tag/asset_link.ts b/lib/plugins/tag/asset_link.ts
index f132730db2..ae4014744c 100644
--- a/lib/plugins/tag/asset_link.ts
+++ b/lib/plugins/tag/asset_link.ts
@@ -1,4 +1,4 @@
-import { encodeURL, escapeHTML } from 'hexo-util';
+import { url_for, escapeHTML } from 'hexo-util';
 import type Hexo from '../../hexo';
 
 /**
@@ -28,7 +28,7 @@ export = (ctx: Hexo) => {
     const attrTitle = escapeHTML(title);
     if (escape === 'true') title = attrTitle;
 
-    const link = encodeURL(new URL(asset.path, ctx.config.url).pathname);
+    const link = url_for.call(ctx, asset.path);
 
     return `<a href="${link}" title="${attrTitle}">${title}</a>`;
   };
diff --git a/lib/plugins/tag/asset_path.ts b/lib/plugins/tag/asset_path.ts
index 60e4c31746..e8c7dbad5d 100644
--- a/lib/plugins/tag/asset_path.ts
+++ b/lib/plugins/tag/asset_path.ts
@@ -1,4 +1,4 @@
-import { encodeURL } from 'hexo-util';
+import { url_for } from 'hexo-util';
 import type Hexo from '../../hexo';
 
 /**
@@ -17,7 +17,7 @@ export = (ctx: Hexo) => {
     const asset = PostAsset.findOne({post: this._id, slug});
     if (!asset) return;
 
-    const path = encodeURL(new URL(asset.path, ctx.config.url).pathname);
+    const path = url_for.call(ctx, asset.path);
 
     return path;
   };
diff --git a/lib/plugins/tag/post_link.ts b/lib/plugins/tag/post_link.ts
index 67289df469..f24449bead 100644
--- a/lib/plugins/tag/post_link.ts
+++ b/lib/plugins/tag/post_link.ts
@@ -1,4 +1,4 @@
-import { encodeURL, escapeHTML } from 'hexo-util';
+import { url_for, encodeURL, escapeHTML } from 'hexo-util';
 import { postFindOneFactory } from './';
 import type Hexo from '../../hexo';
 
@@ -41,7 +41,7 @@ export = (ctx: Hexo) => {
     const attrTitle = escapeHTML(post.title || post.slug);
     if (escape === 'true') title = escapeHTML(title);
 
-    const url = new URL(post.path, ctx.config.url).pathname + (hash ? `#${hash}` : '');
+    const url = url_for.call(ctx, post.path) + (hash ? `#${hash}` : '');
     const link = encodeURL(url);
 
     return `<a href="${link}" title="${attrTitle}">${title}</a>`;
diff --git a/lib/plugins/tag/post_path.ts b/lib/plugins/tag/post_path.ts
index fdc33eccab..6a00426f5e 100644
--- a/lib/plugins/tag/post_path.ts
+++ b/lib/plugins/tag/post_path.ts
@@ -1,4 +1,4 @@
-import { encodeURL } from 'hexo-util';
+import { url_for } from 'hexo-util';
 import { postFindOneFactory } from './';
 import type Hexo from '../../hexo';
 
@@ -17,7 +17,7 @@ export = (ctx: Hexo) => {
     const post = factory({ slug }) || factory({ title: slug });
     if (!post) return;
 
-    const link = encodeURL(new URL(post.path, ctx.config.url).pathname);
+    const link = url_for.call(ctx, post.path);
 
     return link;
   };
diff --git a/test/scripts/tags/post_link.js b/test/scripts/tags/post_link.js
index 05839a8098..deeac052b0 100644
--- a/test/scripts/tags/post_link.js
+++ b/test/scripts/tags/post_link.js
@@ -77,4 +77,9 @@ describe('post_link', () => {
   it('should keep hash', () => {
     postLink(['foo#bar']).should.eql('<a href="/foo/#bar" title="Hello world">Hello world</a>');
   });
+
+  it('with root path', () => {
+    hexo.config.root = '/root/';
+    postLink(['foo']).should.eql('<a href="/root/foo/" title="Hello world">Hello world</a>');
+  });
 });