diff --git a/src/Monolog/Formatter/WildfireFormatter.php b/src/Monolog/Formatter/WildfireFormatter.php
index b7d12cb4..cc7be50b 100644
--- a/src/Monolog/Formatter/WildfireFormatter.php
+++ b/src/Monolog/Formatter/WildfireFormatter.php
@@ -20,7 +20,7 @@ use Monolog\Logger;
  * @author Christophe Coevoet <stof@notk.org>
  * @author Kirill chEbba Chebunin <iam@chebba.org>
  */
-class WildfireFormatter implements FormatterInterface
+class WildfireFormatter extends NormalizerFormatter
 {
     /**
      * Translates Monolog log levels to Wildfire levels.
@@ -50,6 +50,7 @@ class WildfireFormatter implements FormatterInterface
             unset($record['extra']['line']);
         }
 
+        $record = $this->normalize($record);
         $message = array('message' => $record['message']);
         if ($record['context']) {
             $message['context'] = $record['context'];
@@ -84,4 +85,13 @@ class WildfireFormatter implements FormatterInterface
     {
         throw new \BadMethodCallException('Batch formatting does not make sense for the WildfireFormatter');
     }
+
+    protected function normalize($data)
+    {
+        if (is_object($data) && !$data instanceof \DateTime) {
+            return $data;
+        }
+
+        return parent::normalize($data);
+    }
 }