diff --git a/feed.php b/feed.php
index 527185f..8c28eb6 100644
--- a/feed.php
+++ b/feed.php
@@ -25,6 +25,9 @@
     
     $OPDSRender = new OPDSRenderer ();
     
+    // Clean output buffer : mandatory for nginx / php-fpm on Wheezy
+    ob_end_clean();
+    
     switch ($page) {
         case Base::PAGE_OPENSEARCH :
             echo $OPDSRender->getOpenSearch ();