diff --git a/mini-lsm-mvcc/src/lsm_storage.rs b/mini-lsm-mvcc/src/lsm_storage.rs
index ad7022c..10f918b 100644
--- a/mini-lsm-mvcc/src/lsm_storage.rs
+++ b/mini-lsm-mvcc/src/lsm_storage.rs
@@ -173,7 +173,7 @@ pub struct MiniLsm {
     pub(crate) inner: Arc<LsmStorageInner>,
     /// Notifies the L0 flush thread to stop working. (In week 1 day 6)
     flush_notifier: crossbeam_channel::Sender<()>,
-    /// The handle for the compaction thread. (In week 1 day 6)
+    /// The handle for the flush thread. (In week 1 day 6)
     flush_thread: Mutex<Option<std::thread::JoinHandle<()>>>,
     /// Notifies the compaction thread to stop working. (In week 2)
     compaction_notifier: crossbeam_channel::Sender<()>,
diff --git a/mini-lsm-starter/src/lsm_storage.rs b/mini-lsm-starter/src/lsm_storage.rs
index 94c646f..e99fec5 100644
--- a/mini-lsm-starter/src/lsm_storage.rs
+++ b/mini-lsm-starter/src/lsm_storage.rs
@@ -137,7 +137,7 @@ pub struct MiniLsm {
     pub(crate) inner: Arc<LsmStorageInner>,
     /// Notifies the L0 flush thread to stop working. (In week 1 day 6)
     flush_notifier: crossbeam_channel::Sender<()>,
-    /// The handle for the compaction thread. (In week 1 day 6)
+    /// The handle for the flush thread. (In week 1 day 6)
     flush_thread: Mutex<Option<std::thread::JoinHandle<()>>>,
     /// Notifies the compaction thread to stop working. (In week 2)
     compaction_notifier: crossbeam_channel::Sender<()>,
diff --git a/mini-lsm/src/lsm_storage.rs b/mini-lsm/src/lsm_storage.rs
index 7b59122..19d3c64 100644
--- a/mini-lsm/src/lsm_storage.rs
+++ b/mini-lsm/src/lsm_storage.rs
@@ -174,7 +174,7 @@ pub struct MiniLsm {
     pub(crate) inner: Arc<LsmStorageInner>,
     /// Notifies the L0 flush thread to stop working. (In week 1 day 6)
     flush_notifier: crossbeam_channel::Sender<()>,
-    /// The handle for the compaction thread. (In week 1 day 6)
+    /// The handle for the flush thread. (In week 1 day 6)
     flush_thread: Mutex<Option<std::thread::JoinHandle<()>>>,
     /// Notifies the compaction thread to stop working. (In week 2)
     compaction_notifier: crossbeam_channel::Sender<()>,