diff --git a/src/Illuminate/Foundation/Bootstrap/LoadConfiguration.php b/src/Illuminate/Foundation/Bootstrap/LoadConfiguration.php
index 19aefbc170f9..b73858f650e1 100644
--- a/src/Illuminate/Foundation/Bootstrap/LoadConfiguration.php
+++ b/src/Illuminate/Foundation/Bootstrap/LoadConfiguration.php
@@ -2,6 +2,7 @@
 
 namespace Illuminate\Foundation\Bootstrap;
 
+use Exception;
 use SplFileInfo;
 use Illuminate\Config\Repository;
 use Symfony\Component\Finder\Finder;
@@ -62,7 +63,7 @@ protected function loadConfigurationFiles(Application $app, RepositoryContract $
         $files = $this->getConfigurationFiles($app);
 
         if (! isset($files['app'])) {
-            throw new \Exception('Unable to load the config/app.php file.');
+            throw new Exception('Unable to load the "app" configuration file.');
         }
 
         foreach ($this->getConfigurationFiles($app) as $key => $path) {
diff --git a/src/Illuminate/Foundation/Exceptions/Handler.php b/src/Illuminate/Foundation/Exceptions/Handler.php
index f8da3961e08a..f737c6734beb 100644
--- a/src/Illuminate/Foundation/Exceptions/Handler.php
+++ b/src/Illuminate/Foundation/Exceptions/Handler.php
@@ -208,7 +208,7 @@ protected function convertExceptionToResponse(Exception $e)
     {
         $e = FlattenException::create($e);
 
-        $handler = new SymfonyExceptionHandler(config('app.debug', true));
+        $handler = new SymfonyExceptionHandler(config('app.debug', false));
 
         return SymfonyResponse::create($handler->getHtml($e), $e->getStatusCode(), $e->getHeaders());
     }