diff --git a/src/model/boat.rs b/src/model/boat.rs
index a5e30dc..11fa625 100644
--- a/src/model/boat.rs
+++ b/src/model/boat.rs
@@ -20,6 +20,7 @@ pub struct Boat {
 }
 
 #[derive(Serialize, Deserialize)]
+#[serde(rename_all = "lowercase")]
 pub enum BoatDamage {
     None,
     Light,