diff --git a/packages/@vuepress/core/lib/node/webpack/createBaseConfig.js b/packages/@vuepress/core/lib/node/webpack/createBaseConfig.js
index 6c702e87d6..d1e989629b 100644
--- a/packages/@vuepress/core/lib/node/webpack/createBaseConfig.js
+++ b/packages/@vuepress/core/lib/node/webpack/createBaseConfig.js
@@ -145,7 +145,7 @@ module.exports = function createBaseConfig (context, isServer) {
             return false
           }
           // transpile all core files
-          if (/(@vuepress|vuepress-)\/.*\.js$/.test(filePath)) {
+          if (/(@vuepress|vuepress-)\/^((?!node_modules).)*\.js$/.test(filePath)) {
             return false
           }
           // Don't transpile node_modules