diff --git a/app/store/app.ts b/app/store/app.ts
index ec0c8c50e..d6fd140f6 100644
--- a/app/store/app.ts
+++ b/app/store/app.ts
@@ -384,7 +384,7 @@ export const useChatStore = create<ChatStore>()(
         const config = get().config;
         const n = session.messages.length;
         const recentMessages = session.messages.slice(
-          n - config.historyMessageCount,
+          - config.historyMessageCount,
         );
 
         const memoryPrompt = get().getMemoryPrompt();