diff --git a/lib/Subscribers/ImportExport/Export/Export.php b/lib/Subscribers/ImportExport/Export/Export.php
index ff4363bf2e..846c3790ce 100644
--- a/lib/Subscribers/ImportExport/Export/Export.php
+++ b/lib/Subscribers/ImportExport/Export/Export.php
@@ -136,7 +136,7 @@ class Export {
         fwrite($cSVFile, implode(',', array_map($formatCSV, $row)) . "\n");
       }
     }
-
+    fclose($cSVFile);
     return $processedSubscribers;
   }