diff --git a/frontend/src/components/korea/FleetClusterLayer.tsx b/frontend/src/components/korea/FleetClusterLayer.tsx
index 98cde4c..7a0a47f 100644
--- a/frontend/src/components/korea/FleetClusterLayer.tsx
+++ b/frontend/src/components/korea/FleetClusterLayer.tsx
@@ -771,8 +771,8 @@ export function FleetClusterLayer({ ships, analysisMap: analysisMapProp, onShipS
           }}
           paint={{
             'icon-color': ['get', 'color'],
-            'icon-halo-color': ['case', ['==', ['get', 'isParent'], 1], '#fbbf24', 'rgba(0,0,0,0.6)'],
-            'icon-halo-width': ['case', ['==', ['get', 'isParent'], 1], 2, 0.5],
+            'icon-halo-color': 'rgba(0,0,0,0.6)',
+            'icon-halo-width': 0.5,
             'text-color': ['get', 'color'],
             'text-halo-color': '#000000',
             'text-halo-width': 1,