diff --git a/light-client/src/errors.rs b/light-client/src/errors.rs
index f184e91..67e7f33 100644
--- a/light-client/src/errors.rs
+++ b/light-client/src/errors.rs
@@ -225,6 +225,8 @@ pub enum Error {
     UnexpectedGameCreatedAt(u64, u64),
     #[error("UnexpectedCreatedAt: data={0}")]
     UnexpectedCreatedAt(TryFromSliceError),
+    #[error("UnexpectedStatusDefenderWin: data={0}")]
+    UnexpectedStatusDefenderWin(u32),
 
     // Framework
     #[error("LCPError: err={0:?}")]
diff --git a/light-client/src/misbehaviour.rs b/light-client/src/misbehaviour.rs
index d44d068..00844d8 100644
--- a/light-client/src/misbehaviour.rs
+++ b/light-client/src/misbehaviour.rs
@@ -100,7 +100,8 @@ impl TryFrom<RawFaultDisputeGameConfig> for FaultDisputeGameConfig {
             fault_dispute_game_status_slot_offset: value.fault_dispute_game_status_slot_offset,
             fault_dispute_game_created_at_slot_offset: value
                 .fault_dispute_game_created_at_slot_offset,
-            status_defender_win: value.status_defender_win as u8,
+            status_defender_win: u8::try_from(value.status_defender_win)
+                .map_err(|_| Error::UnexpectedStatusDefenderWin(value.status_defender_win))?,
         })
     }
 }