diff --git a/data_model/changelogs/0007/0007_anchor-point.sql b/data_model/changelogs/0007/0007_anchor-point.sql
index 30f30a17..4ef683ce 100644
--- a/data_model/changelogs/0007/0007_anchor-point.sql
+++ b/data_model/changelogs/0007/0007_anchor-point.sql
@@ -5,6 +5,7 @@ ALTER TABLE signalo_db.support ADD COLUMN group_by_anchor BOOLEAN NOT NULL DEFAU
 ALTER TABLE signalo_db.frame ADD COLUMN anchor signalo_db.anchor NOT NULL DEFAULT 'CENTER'::signalo_db.anchor;
 ALTER TABLE signalo_db.azimut ADD COLUMN offset_x INTEGER NOT NULL DEFAULT 0;
 ALTER TABLE signalo_db.azimut ADD COLUMN offset_y INTEGER NOT NULL DEFAULT 0;
+UPDATE signalo_db.azimut SET azimut = (azimut + 180) % 360;
 
 INSERT INTO signalo_db.vl_support_type (id, value_fr, value_de) VALUES (17, 'borne d''îlot', 'Inselpfosten');