diff --git a/advotracker/src/data.rs b/advotracker/src/data.rs
index a027159..989034e 100644
--- a/advotracker/src/data.rs
+++ b/advotracker/src/data.rs
@@ -10,7 +10,7 @@ use serde::{Deserialize, Serialize};
 
 /// An enumeration of valid policy codes.
 /// right now, only "AS" is used.
-#[derive(Debug, Clone, Deserialize, Serialize)]
+#[derive(Debug, Clone, Copy, Deserialize, Serialize)]
 pub enum PolicyCode {
     /// Allianz Sachversicherung
     AS