diff --git a/crates/caldav/src/lib.rs b/crates/caldav/src/lib.rs
index 3c11d17..a6dedd4 100644
--- a/crates/caldav/src/lib.rs
+++ b/crates/caldav/src/lib.rs
@@ -116,7 +116,7 @@ async fn options_handler() -> impl Responder {
     HttpResponse::Ok()
         .insert_header((
             "Allow",
-            "OPTIONS, GET, HEAD, POST, PUT, REPORT, PROPFIND, PROPPATCH, MKCOL",
+            "OPTIONS, GET, HEAD, POST, PUT, REPORT, PROPFIND, PROPPATCH, MKCALENDAR",
         ))
         .insert_header((
             "DAV",