diff --git a/parser.py b/parser.py
index 109570d..8bb2682 100755
--- a/parser.py
+++ b/parser.py
@@ -26,6 +26,7 @@ TIMETABLE = [
     ('17:45','17:45'),
 ]
 DAVURL = "https://cal.edgarpierre.fr"
+CALURL = "https://cal.edgarpierre.fr/edpibu/817427eb-be7c-4540-872a-dfb723a205a6/"
 
 
 class GoogleSheetsCalParser(HTMLParser):
@@ -40,8 +41,17 @@ class GoogleSheetsCalParser(HTMLParser):
         self.row = -1
         self.column = -1
         self.rowspan = 0
-        self.date = 0
-        self.calendar = Calendar()
+        self.date = {}
+
+        import priv
+
+        client = caldav.DAVClient(url=DAVURL, username=priv.USERNAME,
+                password=priv.PASSWORD)
+        self.calendar = caldav.Calendar(client=client, url=CALURL)
+
+        for ev in self.calendar.events():
+            ev.delete()
+
         HTMLParser.__init__(self)
 
     def handle_starttag(self, tag, attrs):
@@ -75,19 +85,25 @@ class GoogleSheetsCalParser(HTMLParser):
 
     def handle_data(self, data):
         if self.inDate:
-            self.date = dt.strptime(data, '%d-%b-%y').date()
+            self.date[self.column] = dt.strptime(data, '%d-%b-%y').date()
         elif self.inCell and data not in ['', '-']:
             times = [time.fromisoformat(TIMETABLE[(self.row - 2) % 12 - 2][1]),
                 time.fromisoformat(TIMETABLE[(self.row - 2) % 12 - 2 + self.rowspan][0])]
 
+            cal = Calendar()
+            cal.add('prodid', '-//edpibu//edt-parser//FR')
+            cal.add('version', '2.0')
             event = Event()
+            event.add('uid', f'{self.row}x{self.column}')
             event.add('summary', data)
-            event.add('dtstart', dt.combine(self.date, times[0],
+            event.add('dtstamp', dt.now())
+            event.add('dtstart', dt.combine(self.date[self.column], times[0],
                 pytz.timezone('Europe/Paris')))
-            event.add('dtend', dt.combine(self.date, times[1],
+            event.add('dtend', dt.combine(self.date[self.column], times[1],
                 pytz.timezone('Europe/Paris')))
+            cal.add_component(event)
 
-            self.calendar.add_component(event)
+            self.calendar.save_event(cal.to_ical().decode('utf-8'))
 
 
 # Getting the Google Sheet
@@ -104,12 +120,3 @@ if r.status_code != 200:
 # Parsing the Sheet
 calParser = GoogleSheetsCalParser()
 calParser.feed(r.text)
-
-# Pushing events to caldav server
-import priv
-
-client = caldav.DAVClient(url=DAVURL, username=priv.USERNAME,
-        password=priv.PASSWORD)
-pr = client.principal()
-calendars = pr.calendars()
-print(calendars)