diff --git a/src/Bundle/ChillActivityBundle/Export/Export/LinkedToACP/CountActivity.php b/src/Bundle/ChillActivityBundle/Export/Export/LinkedToACP/CountActivity.php
index 004c2b14e..566ee1ef4 100644
--- a/src/Bundle/ChillActivityBundle/Export/Export/LinkedToACP/CountActivity.php
+++ b/src/Bundle/ChillActivityBundle/Export/Export/LinkedToACP/CountActivity.php
@@ -90,7 +90,7 @@ class CountActivity implements ExportInterface, GroupedExportInterface
             $qb->join('activity.accompanyingPeriod', 'acp');
         }
 
-        $qb->select('COUNT(activity.id) as export_count_activity');
+        $qb->select('COUNT(DISTINCT activity.id) as export_count_activity');
 
         return $qb;
     }