diff --git a/sql/import.sql b/sql/import.sql
index 6aeb3dd..871ef03 100644
--- a/sql/import.sql
+++ b/sql/import.sql
@@ -407,6 +407,8 @@ FROM import.periodes ip WHERE acp.id = ip.period_id;
 --
 
 -- Undo 59.
+UPDATE chill_person_accompanying_period acp SET origin_id = null FROM import.periodes ip WHERE ip.period_id = acp.id;
+
 -- Undo 58.
 DELETE FROM accompanying_periods_scopes acs USING import.periodes ip WHERE acs.accompanying_period_id = ip.period_id;