diff --git a/calendar/ics.go b/calendar/ics.go
index fdd4720..83fc21b 100644
--- a/calendar/ics.go
+++ b/calendar/ics.go
@@ -3,6 +3,7 @@ package calendar
 import (
 	"bytes"
 	"fmt"
+	"strings"
 	"text/template"
 	"time"
 
@@ -60,7 +61,8 @@ func ICS(cal_id string, from time.Time, to time.Time) (string, error) {
 	if err := tmpl.Execute(buf, cal); err != nil {
 		return "", err
 	}
-	return buf.String(), nil
+
+	return strings.ReplaceAll(buf.String(), "\n", "\r\n"), nil
 }
 
 func icstime(t time.Time) string {