diff --git a/src/time.rs b/src/time.rs
index b9c4de1..a59a2c7 100644
--- a/src/time.rs
+++ b/src/time.rs
@@ -1,5 +1,6 @@
 use std::time::{Instant, Duration};
 
+#[derive(Debug, Clone, Copy)]
 pub struct Periodically {
     last_run: Instant,
     duration: Duration