diff --git a/src/Symfony/Component/DomCrawler/Crawler.php b/src/Symfony/Component/DomCrawler/Crawler.php
index cf588eae5a..d4b7d45009 100644
--- a/src/Symfony/Component/DomCrawler/Crawler.php
+++ b/src/Symfony/Component/DomCrawler/Crawler.php
@@ -816,7 +816,7 @@ class Crawler extends \SplObjectStorage
             }
         }
 
-        return sprintf('concat(%s)', implode($parts, ', '));
+        return sprintf('concat(%s)', implode(', ', $parts));
     }
 
     /**