diff --git a/mycaldav/models.py b/mycaldav/models.py
index a1b2459..6142acb 100644
--- a/mycaldav/models.py
+++ b/mycaldav/models.py
@@ -57,7 +57,10 @@ class caldav_sync_manager(models.Model):
         print(f"test du mois précédant: {last_month.strftime("%d/%m/%Y")}")
         o_caldav_sync_management = caldav_sync_manager.objects.filter(dtDate=last_month.date())
         if not o_caldav_sync_management.exists():
-            self.copy_caldav_data(last_month) 
+            self.copy_caldav_data(last_month)
+            o_new_manager = caldav_sync_manager() 
+            o_new_manager.dtDate = last_month
+            o_new_manager.save() 
             print(f"synced events")        
         else:
             print("Mois précédant: pas de copy, sync déjà fait")