diff --git a/src/Symfony/Component/HttpKernel/DataCollector/DumpDataCollector.php b/src/Symfony/Component/HttpKernel/DataCollector/DumpDataCollector.php
index be3cfdc400c0e..6099097f366bd 100644
--- a/src/Symfony/Component/HttpKernel/DataCollector/DumpDataCollector.php
+++ b/src/Symfony/Component/HttpKernel/DataCollector/DumpDataCollector.php
@@ -155,7 +155,7 @@ public function getDumpsCount()
 
     public function getDumps($format, $maxDepthLimit = -1, $maxItemsPerDepth = -1)
     {
-        $data = fopen('php://memory' 'r+b');
+        $data = fopen('php://memory', 'r+b');
 
         if ('html' === $format) {
             $dumper = new HtmlDumper($data);