diff --git a/runtime/src/bank.rs b/runtime/src/bank.rs
index c51ff9594..b9d8d9937 100644
--- a/runtime/src/bank.rs
+++ b/runtime/src/bank.rs
@@ -1093,6 +1093,7 @@ struct LoadVoteAndStakeAccountsResult {
     vote_accounts_cache_miss_count: usize,
 }
 
+#[derive(Debug)]
 struct VoteReward {
     vote_account: AccountSharedData,
     commission: u8,