diff --git a/pbs-api-types/src/datastore.rs b/pbs-api-types/src/datastore.rs
index 4c9eda2f..95aa8830 100644
--- a/pbs-api-types/src/datastore.rs
+++ b/pbs-api-types/src/datastore.rs
@@ -930,7 +930,7 @@ impl std::str::FromStr for BackupGroup {
 /// Uniquely identify a Backup (relative to data store)
 ///
 /// We also call this a backup snaphost.
-#[derive(Clone, Debug, Eq, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Deserialize, Serialize)]
 #[serde(rename_all = "kebab-case")]
 pub struct BackupDir {
     /// Backup group.