diff --git a/packages/vite/src/node/plugins/css.ts b/packages/vite/src/node/plugins/css.ts
index 00f7e3cc73108f..dfcb70c89c93a1 100644
--- a/packages/vite/src/node/plugins/css.ts
+++ b/packages/vite/src/node/plugins/css.ts
@@ -989,7 +989,7 @@ function loadPreprocessor(lang: PreprocessLang, root: string): any {
   try {
     // Search for the preprocessor in the root directory first, and fall back
     // to the default require paths.
-    const fallbackPaths = require.resolve.paths(lang) || []
+    const fallbackPaths = require.resolve.paths?.(lang) || []
     const resolved = require.resolve(lang, { paths: [root, ...fallbackPaths] })
     return (loadedPreprocessors[lang] = require(resolved))
   } catch (e) {