diff --git a/mycaldav/models.py b/mycaldav/models.py
index d7de68f..db11e16 100644
--- a/mycaldav/models.py
+++ b/mycaldav/models.py
@@ -296,7 +296,7 @@ class cls_caldav_client():
         now = f"01.{datetime.now().month}.{datetime.now().year}"
 
 
-        next_month = datetime.strptime(f"1.{datetime.today().month}.{datetime.today().year}","%d.%m.%Y") + relativedelta(months=1)  - relativedelta(days=1)
+        next_month = datetime.strptime(f"1.{datetime.today().month}.{datetime.today().year}","%d.%m.%Y") + relativedelta(months=1)
         next_month = (next_month.year, next_month.month, next_month.day)
 
         today = (datetime.now().year, datetime.now().month, 1)