diff --git a/src/Symfony/Component/HttpClient/DataCollector/HttpClientDataCollector.php b/src/Symfony/Component/HttpClient/DataCollector/HttpClientDataCollector.php
index 5c3fed50c0..9247b7479a 100644
--- a/src/Symfony/Component/HttpClient/DataCollector/HttpClientDataCollector.php
+++ b/src/Symfony/Component/HttpClient/DataCollector/HttpClientDataCollector.php
@@ -120,7 +120,7 @@ final class HttpClientDataCollector extends DataCollector implements LateDataCol
                 unset($info['http_method']);
             }
 
-            if ($trace['url'] === $info['url']) {
+            if (($info['url'] ?? null) === $trace['url']) {
                 unset($info['url']);
             }