diff --git a/src/Bundle/ChillPersonBundle/Export/Filter/AccompanyingCourseFilters/ReferrerFilter.php b/src/Bundle/ChillPersonBundle/Export/Filter/AccompanyingCourseFilters/ReferrerFilter.php
index bb31a6cde..2a3e5d17e 100644
--- a/src/Bundle/ChillPersonBundle/Export/Filter/AccompanyingCourseFilters/ReferrerFilter.php
+++ b/src/Bundle/ChillPersonBundle/Export/Filter/AccompanyingCourseFilters/ReferrerFilter.php
@@ -93,7 +93,7 @@ class ReferrerFilter implements FilterInterface
 
         return [
             'Filtered by referrer: only %referrers%', [
-                '%referrers' => implode(', ', $users),
+                '%referrers%' => implode(', ', $users),
             ], ];
     }