diff --git a/core/modules/config/config.module b/core/modules/config/config.module
index 05f4b6d..925be4e 100644
--- a/core/modules/config/config.module
+++ b/core/modules/config/config.module
@@ -24,6 +24,11 @@ function config_help($route_name, RouteMatchInterface $route_match) {
       $output = '';
       $output .= '<p>' . t('Import configuration that is placed in your staging directory. All changes, deletions, renames, and additions are listed below.') . '</p>';
       return $output;
+
+    case 'config.import_full':
+      $output = '';
+      $output .= '<p>' . t('After uploading a configuration archive here, you will be able to examine the changes and import them.') . '</p>';
+      return $output;
   }
 }
 
diff --git a/core/modules/config/src/Form/ConfigImportForm.php b/core/modules/config/src/Form/ConfigImportForm.php
index ded11cb..85618cb 100644
--- a/core/modules/config/src/Form/ConfigImportForm.php
+++ b/core/modules/config/src/Form/ConfigImportForm.php
@@ -55,13 +55,10 @@ public function getFormId() {
    * {@inheritdoc}
    */
   public function buildForm(array $form, FormStateInterface $form_state) {
-    $form['description'] = array(
-      '#markup' => '<p>' . $this->t('Use the form to upload a package of Drupal 8 configuration files. After submitting, you will be redirected to the import configuration screen.') . '</p>',
-    );
     $form['import_tarball'] = array(
       '#type' => 'file',
-      '#title' => $this->t('Configuration file package'),
-      '#description' => $this->t('You must upload a file of type tar.gz.'),
+      '#title' => $this->t('Configuration archive'),
+      '#description' => $this->t('Allowed types: @extensions.', array('@extensions' => 'tar.gz tgz')),
     );
 
     $form['submit'] = array(