diff --git a/aquatic_http_protocol/src/common.rs b/aquatic_http_protocol/src/common.rs
index 91b6a5f..bfb48b5 100644
--- a/aquatic_http_protocol/src/common.rs
+++ b/aquatic_http_protocol/src/common.rs
@@ -24,7 +24,7 @@ pub struct InfoHash(
     pub [u8; 20],
 );
 
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum AnnounceEvent {
     Started,
     Stopped,