diff --git a/register.php b/register.php
index 4c1526b..b386b2a 100644
--- a/register.php
+++ b/register.php
@@ -197,7 +197,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') { validate_csrf_token();
             if (stripos($e->getMessage(), 'Duplicate entry') !== false) {
                 $errors[] = t('error_email_exists');
             } else {
-                $errors[] = t('error_registration_failed');
+                $errors[] = t('error_registration_failed') . ' (' . $e->getMessage() . ')';
             }
         }
     }