diff --git a/package.json b/package.json
index 2ff34b5..681f5ac 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "hexo-highlighter-shiki",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "description": "A package for Hexo which use Shiki to render code highlight.",
   "main": "dist/index.js",
   "files": [
diff --git a/src/main.ts b/src/main.ts
index a239782..c156076 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -69,6 +69,7 @@ export async function init(hexo: Hexo) {
     for (const extra_theme of [].concat(config.additional.themes)) {
       additional_themes.push(JSON.parse(readFileSync(extra_theme, "utf8")));
     }
+  // 处理主题
   const themes = additional_themes.concat(
     (typeof config.theme === "string" ? [config.theme] : Object.values(config.theme)).filter(
       (theme) => theme in bundledThemes
@@ -151,7 +152,7 @@ export async function init(hexo: Hexo) {
       };
     };
     try {
-      if (config.theme === "string")
+      if (typeof config.theme === "string")
         pre = highlighter.codeToHtml(code, {
           lang,
           theme: config.theme,