diff --git a/src/Symfony/Component/Debug/Exception/SilencedErrorContext.php b/src/Symfony/Component/Debug/Exception/SilencedErrorContext.php
index f862b74f45..2bacfd5c9b 100644
--- a/src/Symfony/Component/Debug/Exception/SilencedErrorContext.php
+++ b/src/Symfony/Component/Debug/Exception/SilencedErrorContext.php
@@ -54,7 +54,7 @@ class SilencedErrorContext implements \JsonSerializable
         return $this->trace;
     }
 
-    public function JsonSerialize()
+    public function jsonSerialize()
     {
         return [
             'severity' => $this->severity,