diff --git a/komorebi/src/process_event.rs b/komorebi/src/process_event.rs
index 087d58e7..b71f3bb4 100644
--- a/komorebi/src/process_event.rs
+++ b/komorebi/src/process_event.rs
@@ -751,6 +751,8 @@ impl WindowManager {
 
         serde_json::to_writer_pretty(&file, &known_hwnds)?;
 
+        self.known_hwnds = known_hwnds;
+
         notify_subscribers(
             Notification {
                 event: NotificationEvent::WindowManager(event),
diff --git a/komorebi/src/static_config.rs b/komorebi/src/static_config.rs
index 0c5aefcf..9d11c5e3 100644
--- a/komorebi/src/static_config.rs
+++ b/komorebi/src/static_config.rs
@@ -1207,6 +1207,7 @@ impl StaticConfig {
             pending_move_op: Arc::new(None),
             already_moved_window_handles: Arc::new(Mutex::new(HashSet::new())),
             uncloack_to_ignore: 0,
+            known_hwnds: Vec::new(),
         };
 
         match value.focus_follows_mouse {
diff --git a/komorebi/src/window_manager.rs b/komorebi/src/window_manager.rs
index 944b1673..b7973c1b 100644
--- a/komorebi/src/window_manager.rs
+++ b/komorebi/src/window_manager.rs
@@ -117,6 +117,7 @@ pub struct WindowManager {
     pub pending_move_op: Arc<Option<(usize, usize, isize)>>,
     pub already_moved_window_handles: Arc<Mutex<HashSet<isize>>>,
     pub uncloack_to_ignore: usize,
+    pub known_hwnds: Vec<isize>,
 }
 
 #[allow(clippy::struct_excessive_bools)]
@@ -364,6 +365,7 @@ impl WindowManager {
             pending_move_op: Arc::new(None),
             already_moved_window_handles: Arc::new(Mutex::new(HashSet::new())),
             uncloack_to_ignore: 0,
+            known_hwnds: Vec::new(),
         })
     }