diff --git a/apps/ai-game-creator-shell/src/components/ChatMarkdownMessage/index.tsx b/apps/ai-game-creator-shell/src/components/ChatMarkdownMessage/index.tsx
index 39926feee..02a9f3d8a 100644
--- a/apps/ai-game-creator-shell/src/components/ChatMarkdownMessage/index.tsx
+++ b/apps/ai-game-creator-shell/src/components/ChatMarkdownMessage/index.tsx
@@ -93,7 +93,7 @@ function MarkdownListItem({ children }: { children?: ReactNode }) {
   const listKind = useContext(ListKindContext);
   return (
     <ListItemContext.Provider value>
-      <li className="break-words">
+      <li className="break-words whitespace-normal">
         {listKind === 'unordered' ? '- ' : null}
         {children}
       </li>
diff --git a/apps/ai-game-creator-shell/tests/ChatMarkdownMessage.test.tsx b/apps/ai-game-creator-shell/tests/ChatMarkdownMessage.test.tsx
index 43f4a9bde..30eac0d09 100644
--- a/apps/ai-game-creator-shell/tests/ChatMarkdownMessage.test.tsx
+++ b/apps/ai-game-creator-shell/tests/ChatMarkdownMessage.test.tsx
@@ -50,6 +50,7 @@ describe('ChatMarkdownMessage', () => {
     expect(items[0]?.textContent?.trim()).toBe('第一件事');
     expect(items[1]?.textContent?.trim()).toContain('第二件事');
     expect(items[0]?.querySelector('p')?.className ?? '').toContain('inline');
+    expect(items[0]?.className).toContain('whitespace-normal');
     expect(items[0]?.textContent).not.toContain('-');
   });