diff --git a/src/Monolog/Formatter/JsonFormatter.php b/src/Monolog/Formatter/JsonFormatter.php
index 8d10b825..96a05917 100644
--- a/src/Monolog/Formatter/JsonFormatter.php
+++ b/src/Monolog/Formatter/JsonFormatter.php
@@ -186,7 +186,7 @@ class JsonFormatter extends NormalizerFormatter
         $data = array(
             'class' => Utils::getClass($e),
             'message' => $e->getMessage(),
-            'code' => $e->getCode(),
+            'code' => (int) $e->getCode(),
             'file' => $e->getFile().':'.$e->getLine(),
         );
 
diff --git a/src/Monolog/Formatter/MongoDBFormatter.php b/src/Monolog/Formatter/MongoDBFormatter.php
index eb7be849..bd9e4c02 100644
--- a/src/Monolog/Formatter/MongoDBFormatter.php
+++ b/src/Monolog/Formatter/MongoDBFormatter.php
@@ -87,7 +87,7 @@ class MongoDBFormatter implements FormatterInterface
         $formattedException = array(
             'class' => Utils::getClass($exception),
             'message' => $exception->getMessage(),
-            'code' => $exception->getCode(),
+            'code' => (int) $exception->getCode(),
             'file' => $exception->getFile() . ':' . $exception->getLine(),
         );
 
diff --git a/src/Monolog/Formatter/NormalizerFormatter.php b/src/Monolog/Formatter/NormalizerFormatter.php
index 9865394e..867f6fb7 100644
--- a/src/Monolog/Formatter/NormalizerFormatter.php
+++ b/src/Monolog/Formatter/NormalizerFormatter.php
@@ -129,7 +129,7 @@ class NormalizerFormatter implements FormatterInterface
         $data = array(
             'class' => Utils::getClass($e),
             'message' => $e->getMessage(),
-            'code' => $e->getCode(),
+            'code' => (int) $e->getCode(),
             'file' => $e->getFile().':'.$e->getLine(),
         );