diff --git a/core/includes/errors.inc b/core/includes/errors.inc
index 65745d6..a0d536e 100644
--- a/core/includes/errors.inc
+++ b/core/includes/errors.inc
@@ -273,7 +273,7 @@
       // We fallback to a maintenance page at this point, because the page generation
       // itself can generate errors.
       // Should not translate the string to avoid errors producing more errors.
-      $output = theme('maintenance_page', array('content' => 'The website encountered an unexpected error. Please try again later.'));
+      $output = theme('maintenance_page', array('content' => 'The website has encountered an error. Please try again later.));
 
       $response = new Response($output, 500);
       if ($fatal) {
diff --git a/core/lib/Drupal/Core/ExceptionController.php b/core/lib/Drupal/Core/ExceptionController.php
index cb448de..ddf3ba8 100644
--- a/core/lib/Drupal/Core/ExceptionController.php
+++ b/core/lib/Drupal/Core/ExceptionController.php
@@ -266,7 +266,7 @@
     drupal_set_title(t('Error'));
     // We fallback to a maintenance page at this point, because the page
     // generation itself can generate errors.
-    $output = theme('maintenance_page', array('content' => t('The website encountered an unexpected error. Please try again later.')));
+    $output = theme('maintenance_page', array('content' => t('The website has encountered an error. Please try again later.)));
 
     $response = new Response($output, 500);
     $response->setStatusCode(500, '500 Service unavailable (with message)');