diff --git a/core/modules/system/src/Form/ModulesListForm.php b/core/modules/system/src/Form/ModulesListForm.php
index 43ba865..ef853a1 100644
--- a/core/modules/system/src/Form/ModulesListForm.php
+++ b/core/modules/system/src/Form/ModulesListForm.php
@@ -202,14 +202,13 @@ public function buildForm(array $form, FormStateInterface $form_state) {
     $form['modules']['#tree'] = TRUE;
     foreach ($modules as $filename => $module) {
       if (empty($module->info['hidden'])) {
-        $package = $module->info['package'];
+        $package = ucwords($module->info['package']);
         $form['modules'][$package][$filename] = $this->buildRow($modules, $module, $distribution);
       }
     }
 
     // Add a wrapper around every package.
     foreach (Element::children($form['modules']) as $package) {
-      $package = ucwords($package);
       $form['modules'][$package] += array(
         '#type' => 'details',
         '#title' => $this->t($package),