diff --git a/lib/plugins/tag/include_code.js b/lib/plugins/tag/include_code.js
index 59e4436a16..a7cd9f6c3a 100644
--- a/lib/plugins/tag/include_code.js
+++ b/lib/plugins/tag/include_code.js
@@ -1,7 +1,7 @@
 'use strict';
 
 const { exists, readFile } = require('hexo-fs');
-const { basename, extname, join } = require('path');
+const { basename, extname, join, posix } = require('path');
 
 // Lazy require highlight.js & prismjs
 let highlight, prismHighlight;
@@ -55,7 +55,7 @@ module.exports = ctx => function includeCodeTag(args) {
 
   // If the title is not defined, use file name instead
   const title = match[1] || basename(path);
-  const caption = `<span>${title}</span><a href="${ctx.config.root}${codeDir}${path}">view raw</a>`;
+  const caption = `<span>${title}</span><a href="${posix.join(ctx.config.root, codeDir, path)}">view raw</a>`;
 
   const hljsCfg = ctx.config.highlight || {};
   const prismjsCfg = ctx.config.prismjs || {};