diff --git a/src/pages/chat.rs b/src/pages/chat.rs
index e9259dd..5bd50b2 100644
--- a/src/pages/chat.rs
+++ b/src/pages/chat.rs
@@ -45,10 +45,11 @@ pub fn ChatPage() -> Element {
         }
     }
 
-    // Load messages when active session changes
-    let active_id_for_load = active_session_id.read().clone();
+    // Load messages when active session changes.
+    // The signal read MUST happen inside the closure so use_resource
+    // tracks it as a dependency and re-fetches on change.
     let _messages_loader = use_resource(move || {
-        let session_id = active_id_for_load.clone();
+        let session_id = active_session_id.read().clone();
         async move {
             if let Some(id) = session_id {
                 match list_chat_messages(id).await {