diff --git a/src/corePlugins.js b/src/corePlugins.js
index 353f4d03c928..03ff5e238db1 100644
--- a/src/corePlugins.js
+++ b/src/corePlugins.js
@@ -179,7 +179,7 @@ export let variantPlugins = {
   },
 
   darkVariants: ({ config, addVariant }) => {
-    let [mode, className = '.dark'] = [].concat(config('darkMode', 'media'))
+    let [mode] = [].concat(config('darkMode', 'media'))
 
     if (mode === false) {
       mode = 'media'
diff --git a/tests/variants.test.js b/tests/variants.test.js
index 49977cd18002..f65ce3884340 100644
--- a/tests/variants.test.js
+++ b/tests/variants.test.js
@@ -1,6 +1,8 @@
 import fs from 'fs'
 import path from 'path'
+/*
 import postcss from 'postcss'
+*/
 
 import { run, css, html, defaults } from './util/run'