diff --git a/core/mvcc/database/mod.rs b/core/mvcc/database/mod.rs
index 4ae85f195..4cdd4f65e 100644
--- a/core/mvcc/database/mod.rs
+++ b/core/mvcc/database/mod.rs
@@ -534,7 +534,7 @@ impl<Clock: LogicalClock, T: Sync + Send + Clone + Debug + 'static> MvStore<Cloc
                     }
                     if let Some(TxTimestampOrID::TxID(id)) = row_version.end {
                         if id == tx_id {
-                            // New version is valid UNTIL committing transaction's end timestamp
+                            // Old version is valid UNTIL committing transaction's end timestamp
                             // See diagram on page 299: https://www.cs.cmu.edu/~15721-f24/papers/Hekaton.pdf
                             row_version.end = Some(TxTimestampOrID::Timestamp(end_ts));
                             self.insert_version_raw(