diff --git a/calendar/service.go b/calendar/service.go
index 31030c1..ca4aa9d 100644
--- a/calendar/service.go
+++ b/calendar/service.go
@@ -40,7 +40,7 @@ func (srv Service) Load() error {
 	calApi.DELETE("", ApiCalDelete)
 
 	//+-30day
-	server.Server.GET("ics/:cid", func(c *gin.Context) {
+	server.Server.GET("ics/:cid/basic.ics", func(c *gin.Context) {
 		cid := c.Param("cid")
 		ics, err := ICS(cid,
 			time.Now().Add(time.Hour*-720),