diff --git a/packages/core/parcel-bundler/src/transforms/postcss.js b/packages/core/parcel-bundler/src/transforms/postcss.js
index 4718d1477ed..a8c83d603aa 100644
--- a/packages/core/parcel-bundler/src/transforms/postcss.js
+++ b/packages/core/parcel-bundler/src/transforms/postcss.js
@@ -44,20 +44,23 @@ async function getConfig(asset) {
   }
 
   let postcssModulesConfig = {
-    getJSON: (filename, json) => (asset.cssModules = json),
-    Loader: createLoader(asset),
     generateScopedName: (name, filename) =>
       `_${name}_${md5(filename).substr(0, 5)}`
   };
 
   if (config.plugins && config.plugins['postcss-modules']) {
-    postcssModulesConfig = Object.assign(
-      config.plugins['postcss-modules'],
-      postcssModulesConfig
+    Object.assign(
+      postcssModulesConfig,
+      config.plugins['postcss-modules']
     );
     delete config.plugins['postcss-modules'];
   }
 
+  Object.assign(postcssModulesConfig, {
+    getJSON: (filename, json) => (asset.cssModules = json),
+    Loader: createLoader(asset)
+  })
+
   config.plugins = await loadPlugins(config.plugins, asset.name);
 
   if (config.modules || enableModules) {