diff --git a/frontend/lib/registry/components/split-panel-layout/SplitPanelLayoutConfigPanel.tsx b/frontend/lib/registry/components/split-panel-layout/SplitPanelLayoutConfigPanel.tsx
index f59a16e6..9f88e290 100644
--- a/frontend/lib/registry/components/split-panel-layout/SplitPanelLayoutConfigPanel.tsx
+++ b/frontend/lib/registry/components/split-panel-layout/SplitPanelLayoutConfigPanel.tsx
@@ -1447,7 +1447,7 @@ export const SplitPanelLayoutConfigPanel: React.FC<SplitPanelLayoutConfigPanelPr
         </div>
 
         {/* 요약 표시 설정 (LIST 모드에서만) */}
-        {config.rightPanel?.displayMode === "list" && (
+        {(config.rightPanel?.displayMode || "list") === "list" && (
           <div className="space-y-3 rounded-lg border border-gray-200 bg-gray-50 p-3">
             <Label className="text-sm font-semibold">요약 표시 설정</Label>