diff --git a/programs/bets/src/instructions/reward_leaderboard.rs b/programs/bets/src/instructions/reward_leaderboard.rs
index e476ce1..d9a671e 100644
--- a/programs/bets/src/instructions/reward_leaderboard.rs
+++ b/programs/bets/src/instructions/reward_leaderboard.rs
@@ -69,7 +69,7 @@ pub struct RewardLeaderboard<'info>{
 
     /// CHECK: The winner account
     #[account(mut)]
-    pub winner: AccountInfo<'info>,
+    pub winner: SystemAccount<'info>,
 
     #[account(
         mut,