diff --git a/themes/chameleon/scripts/feed/.atom.xml b/themes/chameleon/scripts/feed/.atom.xml
index 672e25b..93988e6 100644
--- a/themes/chameleon/scripts/feed/.atom.xml
+++ b/themes/chameleon/scripts/feed/.atom.xml
@@ -45,10 +45,10 @@
       {% endif %}
     {% endif %}
     {% if post.image %}
-    <content src="{{ url + post.image | uriencode }}" type="image" />
+    <content src="{{ post.image | fullUrlFor }}" type="image" />
     {% endif %}
     {% for tag in post.tags.toArray() %}
-    <category term="{{ tag.name }}" scheme="{{ url + tag.path | uriencode }}"/>
+    <category term="{{ tag.name }}" scheme="{{ tag.path | fullUrlFor }}"/>
     {% endfor %}
   </entry>
   {% endfor %}
diff --git a/themes/chameleon/scripts/feed/generator.js b/themes/chameleon/scripts/feed/generator.js
index c828ddc..5a29fb5 100644
--- a/themes/chameleon/scripts/feed/generator.js
+++ b/themes/chameleon/scripts/feed/generator.js
@@ -6,7 +6,6 @@ const { join } = require('path')
 const { readFileSync } = require('fs')
 const moment = require('moment')
 const { encodeURL, full_url_for } = require('hexo-util')
-const { format } = require('url')
 
 env.addFilter('uriencode', str => {
   return encodeURL(str)
@@ -25,10 +24,14 @@ const atomTmpl = nunjucks.compile(readFileSync(atomTmplSrc, 'utf8'), env)
 
 module.exports = function (locals) {
   const { config } = this
-  const { feed, root, url } = config
+  const { feed, url } = config
   const { icon: iconCfg, limit, order_by, path } = feed
   const template = atomTmpl
 
+  env.addFilter('fullUrlFor', str => {
+    return full_url_for.call(this, str)
+  })
+
   let posts = locals.posts.sort(order_by || '-date')
   posts = posts.filter(post => {
     return post.draft !== true
@@ -38,12 +41,14 @@ module.exports = function (locals) {
 
   const icon = iconCfg ? full_url_for.call(this, iconCfg) : ''
 
+  const feed_url = full_url_for.call(this, path);
+
   const data = template.render({
     config,
     url,
     icon,
     posts,
-    feed_url: root + path
+    feed_url
   })
 
   return {
diff --git a/themes/chameleon/scripts/sitemap/.sitemap.xml b/themes/chameleon/scripts/sitemap/.sitemap.xml
index 9b7face..a4c3544 100644
--- a/themes/chameleon/scripts/sitemap/.sitemap.xml
+++ b/themes/chameleon/scripts/sitemap/.sitemap.xml
@@ -13,13 +13,13 @@
 
   {# home page #}
   <url>
-    <loc>{{ config.url + config.root }}</loc>
+    <loc>{{ config.root | fullUrlFor }}</loc>
     <lastmod>{% if posts[0].updated %}{{ posts[0].updated | formatDate }}{% else %}{{ posts[0].date | formatDate }}{% endif %}</lastmod>
   </url>
 
   {# archive page #}
   <url>
-    <loc>{{ config.url + '/' + config.archive_dir + '/' }}</loc>
+    <loc>{{ config.archive_dir | fullUrlFor + '/' }}</loc>
     <lastmod>{% if posts[0].updated %}{{ posts[0].updated | formatDate }}{% else %}{{ posts[0].date | formatDate }}{% endif %}</lastmod>
    </url>
   
diff --git a/themes/chameleon/scripts/sitemap/template.js b/themes/chameleon/scripts/sitemap/template.js
index 213f39c..ebabecd 100644
--- a/themes/chameleon/scripts/sitemap/template.js
+++ b/themes/chameleon/scripts/sitemap/template.js
@@ -3,6 +3,7 @@
 const { join } = require('path')
 const { readFileSync } = require('fs')
 const moment = require('moment')
+const { full_url_for } = require('hexo-util')
 let sitemapTmpl = ''
 
 module.exports = function (config) {
@@ -18,6 +19,10 @@ module.exports = function (config) {
     return moment(str).format('YYYY-MM-DD[T00:00:00.000Z]').substring(0, 10)
   })
 
+  env.addFilter('fullUrlFor', str => {
+    return full_url_for.call({ config }, str)
+  })
+
   const sitemapSrc = config.sitemap.template || join(__dirname, '.sitemap.xml')
   sitemapTmpl = nunjucks.compile(readFileSync(sitemapSrc, 'utf8'), env)