diff --git a/lib/builder/webpack/utils/perf-loader.js b/lib/builder/webpack/utils/perf-loader.js
index 9597fc9b1f..7ccff1ca8b 100644
--- a/lib/builder/webpack/utils/perf-loader.js
+++ b/lib/builder/webpack/utils/perf-loader.js
@@ -54,6 +54,10 @@ export default class PerfLoader {
   }
 
   poolOneOf(poolName, oneOfRules) {
+    // disable css thread pool since vue-style-loader needs options like: target
+    if (poolName === 'css' && !this.options.build.extractCSS) {
+      return oneOfRules
+    }
     return oneOfRules.map(rule => Object.assign({}, rule, {
       use: this.pool(poolName, rule.use)
     }))