diff --git a/packages/docusaurus-search-local/src/server/index.ts b/packages/docusaurus-search-local/src/server/index.ts
index 3703dbe..8e68124 100644
--- a/packages/docusaurus-search-local/src/server/index.ts
+++ b/packages/docusaurus-search-local/src/server/index.ts
@@ -179,14 +179,13 @@ export default function cmfcmfDocusaurusSearchLocal(
 
   let generated =
     "// THIS FILE IS AUTOGENERATED\n" + "// DO NOT EDIT THIS FILE!\n\n";
+  generated += 'import * as lunr from "../../../lunr.js";\n';
 
   if (style !== "none") {
     generated += 'import "@algolia/autocomplete-theme-classic";\n';
     generated += 'import "./index.css";\n';
   }
 
-  generated += 'const lunr = require("../../../lunr.js");\n';
-
   function handleLangCode(code: string) {
     let generated = "";
 
@@ -254,6 +253,9 @@ lunr.tokenizer.separator = ${lunrTokenizerSeparator.toString()};\n`;
 export const tokenize = (input) => lunr.tokenizer(input)
   .map(token => token.str);\n`;
   }
+  if (!lunr) {
+    generated += `import * as lunr from '../../../lunr.js';\n`;
+  }
   generated += `export const mylunr = lunr;\n`;
 
   ["src", "lib"].forEach((folder) => {