2 files changed, 3 insertions, 1 deletions
diff --git a/src/lib.rs b/src/lib.rs
index af5fd29..ba4aedc 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -193,6 +193,7 @@
 extern crate chrono;
 extern crate chrono_tz;
 extern crate regex;
+extern crate serde;
 #[macro_use]
 extern crate lazy_static;
 
diff --git a/src/options.rs b/src/options.rs
index 4e6f1cd..0863294 100644
--- a/src/options.rs
+++ b/src/options.rs
@@ -1,11 +1,12 @@
 use crate::datetime::{get_weekday_val, DTime};
 use crate::parse_options::parse_options;
 use chrono::prelude::*;
+use serde::{Serialize, Deserialize};
 use chrono_tz::{Tz, UTC};
 use std::error::Error;
 use std::fmt::{Display, Formatter};
 
-#[derive(Debug, PartialEq, PartialOrd, Clone)]
+#[derive(Serialize, Deserialize, Debug, PartialEq, PartialOrd, Clone)]
 pub enum Frequenzy {
     Yearly = 0,
     Monthly = 1,