diff --git a/src/Symfony/Component/HttpClient/HttplugClient.php b/src/Symfony/Component/HttpClient/HttplugClient.php
index 6c612ce13c..71eb5200ce 100644
--- a/src/Symfony/Component/HttpClient/HttplugClient.php
+++ b/src/Symfony/Component/HttpClient/HttplugClient.php
@@ -100,7 +100,13 @@ final class HttplugClient implements HttpClient, RequestFactory, StreamFactory,
         }
 
         if (\is_string($body ?? '')) {
-            return $this->client->createStream($body ?? '');
+            $body = $this->client->createStream($body ?? '');
+
+            if ($body->isSeekable()) {
+                $body->seek(0);
+            }
+
+            return $body;
         }
 
         if (\is_resource($body)) {
diff --git a/src/Symfony/Component/HttpClient/Psr18Client.php b/src/Symfony/Component/HttpClient/Psr18Client.php
index ee8c813b46..acc85b8ea2 100644
--- a/src/Symfony/Component/HttpClient/Psr18Client.php
+++ b/src/Symfony/Component/HttpClient/Psr18Client.php
@@ -125,7 +125,13 @@ final class Psr18Client implements ClientInterface, RequestFactoryInterface, Str
      */
     public function createStream(string $content = ''): StreamInterface
     {
-        return $this->streamFactory->createStream($content);
+        $stream = $this->streamFactory->createStream($content);
+
+        if ($stream->isSeekable()) {
+            $stream->seek(0);
+        }
+
+        return $stream;
     }
 
     /**