diff --git a/programs/vote/src/vote_state/mod.rs b/programs/vote/src/vote_state/mod.rs
index e7307710083c62..5ad6ef110a8339 100644
--- a/programs/vote/src/vote_state/mod.rs
+++ b/programs/vote/src/vote_state/mod.rs
@@ -534,6 +534,7 @@ impl VoteState {
                 && BlockTimestamp { slot, timestamp } != self.last_timestamp
                 && self.last_timestamp.slot != 0)
         {
+            error!("TimestampTooOld {:?} - {} - {}", self.last_timestamp, slot, timestamp);
             return Err(VoteError::TimestampTooOld);
         }
         self.last_timestamp = BlockTimestamp { slot, timestamp };