diff --git a/src/Bundle/ChillActivityBundle/Export/Export/LinkedToPerson/ListActivity.php b/src/Bundle/ChillActivityBundle/Export/Export/LinkedToPerson/ListActivity.php
index f052c5885..5d438d3a5 100644
--- a/src/Bundle/ChillActivityBundle/Export/Export/LinkedToPerson/ListActivity.php
+++ b/src/Bundle/ChillActivityBundle/Export/Export/LinkedToPerson/ListActivity.php
@@ -124,7 +124,7 @@ class ListActivity implements ListInterface, GroupedExportInterface
                         return 'attendee';
                     }
 
-                    return $value ? 1 : 0;
+                    return $value ? 'X' : '';
                 };
 
             case 'list_reasons':