diff --git a/src/Responder/JsonResponder.php b/src/Responder/JsonResponder.php
index e81bdb4ef..d1fc8f1ba 100644
--- a/src/Responder/JsonResponder.php
+++ b/src/Responder/JsonResponder.php
@@ -37,7 +37,7 @@ public function __construct(ResponseFactoryInterface $responseFactory)
      */
     public function render(array $data = null): ResponseInterface
     {
-        $json = json_encode($data, JSON_PRETTY_PRINT);
+        $json = json_encode($data);
         if ($json === false) {
             throw new RuntimeException('Malformed UTF-8 characters, possibly incorrectly encoded.');
         }