diff --git a/src/Symfony/Component/HttpClient/DataCollector/HttpClientDataCollector.php b/src/Symfony/Component/HttpClient/DataCollector/HttpClientDataCollector.php
index 8e85462737e99..a749aa61ceaa9 100644
--- a/src/Symfony/Component/HttpClient/DataCollector/HttpClientDataCollector.php
+++ b/src/Symfony/Component/HttpClient/DataCollector/HttpClientDataCollector.php
@@ -252,8 +252,8 @@ private function escapePayload(string $payload): string
     {
         static $useProcess;
 
-        if ($useProcess ??= class_exists(Process::class)) {
-            return (new Process([$payload]))->getCommandLine();
+        if ($useProcess ??= function_exists('proc_open') && class_exists(Process::class)) {
+            return substr((new Process(['', $payload]))->getCommandLine(), 3);
         }
 
         if ('\\' === \DIRECTORY_SEPARATOR) {