diff --git a/mycaldav/models.py b/mycaldav/models.py
index 87ab069..28c2d5e 100644
--- a/mycaldav/models.py
+++ b/mycaldav/models.py
@@ -245,11 +245,7 @@ class cls_caldav_client():
     def get_lastName_with_MC(self,search):
         print(f"search équipage 1: {search}")
         user = User.objects.get(username=f"mc{search}@clerc.ch")
-        last_name = user.last_name
-        all_user_with_same_last_name = User.objects.filter(last_name=last_name)
-        if len(all_user_with_same_last_name) > 1:
-            print(f"Multiple last_name found {last_name}")
-            last_name = f"{user.first_name[0]}. {last_name}"
+        last_name = f"{user.last_name} {user.first_name[0]}."
         return last_name
 
     def format_data_event(self,event):