diff --git a/src/js/itemAvailability.js b/src/js/itemAvailability.js
index a6d42f07076f25eca4f3a1bede036afa8d87e3c7..30db1b41bb2de334068479900a4c8a21d6e5bdd3 100644
--- a/src/js/itemAvailability.js
+++ b/src/js/itemAvailability.js
@@ -37,7 +37,7 @@ globalThis.isItemAccessible = (function() {
 				continue;
 			}
 			if (V.cheatMode || isAvailable(obj)) {
-				const name = (obj.fs.unlocks) ? `${obj.name} (FS)` : obj.name;
+				const name = (obj.fs && obj.fs.unlocks) ? `${obj.name} (FS)` : obj.name;
 				array.push([name, key]);
 			}
 		}