diff --git a/core/lib/Thelia/Core/FileFormat/Formatting/Formatter/CSVFormatter.php b/core/lib/Thelia/Core/FileFormat/Formatting/Formatter/CSVFormatter.php
index af977be57..4a42db3b0 100644
--- a/core/lib/Thelia/Core/FileFormat/Formatting/Formatter/CSVFormatter.php
+++ b/core/lib/Thelia/Core/FileFormat/Formatting/Formatter/CSVFormatter.php
@@ -84,6 +84,10 @@ class CSVFormatter extends AbstractFormatter
         $delimiterLength = strlen($this->delimiter);
         $lineReturnLength = strlen($this->lineReturn);
 
+        if ($firstRow === null) {
+            return "";
+        }
+
         /**
          * check if $this->order doesn't have non-existing rows
          */