diff --git a/src/calanonsync/caldav.go b/src/calanonsync/caldav.go
index 5253384..d9364ca 100644
--- a/src/calanonsync/caldav.go
+++ b/src/calanonsync/caldav.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"bufio"
+	"bytes"
 	"encoding/xml"
 	"errors"
 	"fmt"
@@ -135,6 +136,35 @@ func ParseICal(r io.Reader) (*ICal, error) {
 	}, err
 }
 
+func CreateICal(uid, summary string, start, end time.Time) *ICal {
+	model := struct {
+		UID     string
+		Summary string
+		Start   string
+		End     string
+		Now     string
+	}{
+		UID:     uid,
+		Summary: summary,
+		Start:   start.UTC().Format(ICAL_TIME),
+		End:     end.UTC().Format(ICAL_TIME),
+		Now:     time.Now().UTC().Format(ICAL_TIME),
+	}
+
+	b := &bytes.Buffer{}
+	err := icalTemplate.Execute(b, model)
+	if err != nil {
+		// Internal stuff, so this really should not fail.
+		panic(err)
+	}
+	ical, err := ParseICal(b)
+	if err != nil {
+		// Internal stuff, so this really should not fail.
+		panic(err)
+	}
+	return ical
+}
+
 func NewCalDAV(settings ServerSettings) *CalDAV {
 	return &CalDAV{
 		httpClient:     http.DefaultClient,
@@ -238,7 +268,7 @@ type PropFindResponse struct {
 }
 
 var icalTemplate = template.Must(template.New("icalTemplate").Parse(`BEGIN:VCALENDAR
-PRODID:-//aksdb/calanonsync//EN
+PRODID:-//aksdb//calanonsync//EN
 VERSION:2.0
 BEGIN:VEVENT
 UID:{{ .UID }}