diff --git a/apps/antalmanac/src/components/Map/Map.tsx b/apps/antalmanac/src/components/Map/Map.tsx
index f54462b0e..58c93c8a1 100644
--- a/apps/antalmanac/src/components/Map/Map.tsx
+++ b/apps/antalmanac/src/components/Map/Map.tsx
@@ -183,20 +183,6 @@ export default function CourseMap() {
         };
     }, []);
 
-    useEffect(() => {
-        const updateCustomEventMarkers = () => {
-            setCustomEventMarkers(getCustomEventPerBuilding());
-        };
-
-        AppStore.on('customEventsChange', updateCustomEventMarkers);
-        AppStore.on('currentScheduleIndexChange', updateCustomEventMarkers);
-
-        return () => {
-            AppStore.removeListener('customEventsChange', updateCustomEventMarkers);
-            AppStore.removeListener('currentScheduleIndexChange', updateCustomEventMarkers);
-        };
-    }, []);
-
     useEffect(() => {
         const locationID = Number(searchParams.get('location') ?? 0);
         const building = locationID in buildingCatalogue ? buildingCatalogue[locationID] : undefined;