diff --git a/backend/gn_module_zh/model/cards.py b/backend/gn_module_zh/model/cards.py
index c2f6b142..84caeeb2 100644
--- a/backend/gn_module_zh/model/cards.py
+++ b/backend/gn_module_zh/model/cards.py
@@ -394,7 +394,7 @@ def __str__(self):
         cahier_lb_hab_fr = cahier.lb_hab_fr
         cahier_lb_code = cahier.lb_code
         priority = (
-            DB.session.execute(select(CorChStatus).where(CorChStatus.lb_code == cahier_lb_code))
+            DB.session.execute(select(CorChStatus).where(CorChStatus.lb_code == cahier_lb_code).distinct())
             .scalar_one()
             .priority
         )
diff --git a/backend/gn_module_zh/nomenclatures.py b/backend/gn_module_zh/nomenclatures.py
index eaf3e08e..cfab354a 100644
--- a/backend/gn_module_zh/nomenclatures.py
+++ b/backend/gn_module_zh/nomenclatures.py
@@ -99,7 +99,7 @@ def get_ch(lb_code):
                     "lb_code": hab.lb_code,
                     "lb_hab_fr": hab.lb_hab_fr,
                     "priority": DB.session.execute(
-                        select(CorChStatus).where(CorChStatus.lb_code == hab.lb_code)
+                        select(CorChStatus).where(CorChStatus.lb_code == hab.lb_code).distinct()
                     )
                     .scalar_one()
                     .priority,