From 700089e381026013fe246760880092f40b0a989f Mon Sep 17 00:00:00 2001
From: Guarzo <guarzo.eve@gmail.com>
Date: Thu, 27 Nov 2025 04:12:59 +0000
Subject: [PATCH] fix: defensive check for undefined excluded systems

---
 .../mapInterface/widgets/WSystemKills/hooks/useSystemKills.ts   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/assets/js/hooks/Mapper/components/mapInterface/widgets/WSystemKills/hooks/useSystemKills.ts b/assets/js/hooks/Mapper/components/mapInterface/widgets/WSystemKills/hooks/useSystemKills.ts
index c6b15275..62c1114b 100644
--- a/assets/js/hooks/Mapper/components/mapInterface/widgets/WSystemKills/hooks/useSystemKills.ts
+++ b/assets/js/hooks/Mapper/components/mapInterface/widgets/WSystemKills/hooks/useSystemKills.ts
@@ -31,7 +31,7 @@ export function useSystemKills({ systemId, outCommand, showAllVisible = false, s
     storedSettings: { settingsKills },
   } = useMapRootState();
 
-  const excludedSystems = useStableValue(settingsKills.excludedSystems);
+  const excludedSystems = useStableValue(settingsKills.excludedSystems ?? []);
 
   const effectiveSystemIds = useMemo(() => {
     if (showAllVisible) {