diff --git a/src/Symfony/Component/HttpFoundation/Request.php b/src/Symfony/Component/HttpFoundation/Request.php
index e3c2667a7d204..286c329614edc 100644
--- a/src/Symfony/Component/HttpFoundation/Request.php
+++ b/src/Symfony/Component/HttpFoundation/Request.php
@@ -1588,7 +1588,7 @@ public function toArray(): array
         }
 
         if (\PHP_VERSION_ID < 70300 && \JSON_ERROR_NONE !== json_last_error()) {
-            throw new JsonException('Could not decode request body: ' . json_last_error_msg(), json_last_error());
+            throw new JsonException('Could not decode request body: '.json_last_error_msg(), json_last_error());
         }
 
         if (!\is_array($content)) {