diff --git a/src/Whoops.php b/src/Whoops.php
index c935b50..1185d8d 100644
--- a/src/Whoops.php
+++ b/src/Whoops.php
@@ -7,6 +7,7 @@
 use Interop\Http\ServerMiddleware\MiddlewareInterface;
 use Interop\Http\ServerMiddleware\DelegateInterface;
 use Whoops\Run;
+use Whoops\Util\SystemFacade;
 use Whoops\Handler\PrettyPageHandler;
 use Whoops\Handler\PlainTextHandler;
 use Whoops\Handler\JsonResponseHandler;
@@ -105,7 +106,20 @@ public function process(ServerRequestInterface $request, DelegateInterface $dele
      */
     private static function getWhoopsInstance(ServerRequestInterface $request)
     {
-        $whoops = new Run();
+        $system = new SystemFacade();
+        $whoops = new Run($system);
+
+        //E_ERROR in PHP 5.x
+        if (!class_exists('Throwable')) {
+            $system->registerShutdownFunction(function () use ($whoops) {
+                $whoops->allowQuit(true);
+                $whoops->writeToOutput(true);
+                $whoops->sendHttpCode(true);
+
+                $method = Run::SHUTDOWN_HANDLER;
+                $whoops->$method();
+            });
+        }
 
         switch (self::getPreferredFormat($request)) {
             case 'json':
diff --git a/tests/WhoopsTest.php b/tests/WhoopsTest.php
index 0692308..19bcc90 100644
--- a/tests/WhoopsTest.php
+++ b/tests/WhoopsTest.php
@@ -22,6 +22,20 @@ function () {
         $this->assertNotFalse(strpos($response->getBody(), 'Error Processing Request'));
     }
 
+    public function testFatalError()
+    {
+        $response = Dispatcher::run([
+            new Whoops(),
+            function () {
+                new UnexistingClass();
+            },
+        ]);
+
+        $this->assertEquals(500, $response->getStatusCode());
+        $this->assertEquals('text/plain', $response->getHeaderLine('Content-Type'));
+        $this->assertNotFalse(strpos($response->getBody(), "Class 'Middlewares\\Tests\\UnexistingClass' not found"));
+    }
+
     public function testNotError()
     {
         $response = Dispatcher::run([