diff --git a/src/Bundle/ChillPersonBundle/Export/AbstractAccompanyingPeriodExportElement.php b/src/Bundle/ChillPersonBundle/Export/AbstractAccompanyingPeriodExportElement.php
index d7c98a7d7..4fa0b9ad8 100644
--- a/src/Bundle/ChillPersonBundle/Export/AbstractAccompanyingPeriodExportElement.php
+++ b/src/Bundle/ChillPersonBundle/Export/AbstractAccompanyingPeriodExportElement.php
@@ -38,12 +38,4 @@ class AbstractAccompanyingPeriodExportElement
             $query->join('acppart.accompanyingPeriod', 'acp');
         }
     }
-
-    /**
-     * Return true if "accompanying_period" alias is present in the query alises.
-     */
-    protected function havingAccompanyingPeriodInJoin(QueryBuilder $query): bool
-    {
-        return in_array('acp', $query->getAllAliases(), true);
-    }
 }