diff --git a/core/modules/config/lib/Drupal/config/Form/ConfigImportForm.php b/core/modules/config/lib/Drupal/config/Form/ConfigImportForm.php
index bb5f4ed..a348bf2 100644
--- a/core/modules/config/lib/Drupal/config/Form/ConfigImportForm.php
+++ b/core/modules/config/lib/Drupal/config/Form/ConfigImportForm.php
@@ -55,12 +55,12 @@ public function getFormId() {
    */
   public function buildForm(array $form, array &$form_state) {
     $form['description'] = array(
-      '#markup' => '<p>' . $this->t('Use the upload button below.') . '</p>',
+      '#markup' => '<p>' . $this->t('This form will redirect you to the import configuration screen.') . '</p>',
     );
     $form['import_tarball'] = array(
       '#type' => 'file',
-      '#title' => $this->t('Select your configuration export file'),
-      '#description' => $this->t('This form will redirect you to the import configuration screen.'),
+      '#title' => $this->t('Configuration export file'),
+      '#description' => $this->t('This must be a <em>*.tar.gz</em> file.'),
     );
 
     $form['submit'] = array(
@@ -79,7 +79,7 @@ public function validateForm(array &$form, array &$form_state) {
       $form_state['values']['import_tarball'] = $file_upload->getRealPath();
     }
     else {
-      $this->setFormError('import_tarball', $form_state, $this->t('The import tarball could not be uploaded.'));
+      $this->setFormError('import_tarball', $form_state, $this->t('The file could not be uploaded.'));
     }
   }
 
@@ -96,7 +96,7 @@ public function submitForm(array &$form, array &$form_state) {
           $files[] = $file['filename'];
         }
         $archiver->extractList($files, config_get_config_directory(CONFIG_STAGING_DIRECTORY));
-        drupal_set_message($this->t('Your configuration files were successfully uploaded, ready for import.'));
+        drupal_set_message($this->t('Your configuration files were successfully uploaded and are ready for import.'));
         $form_state['redirect_route']['route_name'] = 'config.sync';
       }
       catch (\Exception $e) {