diff --git a/lib/wanderer_app_web/live/map/event_handlers/map_routes_event_handler.ex b/lib/wanderer_app_web/live/map/event_handlers/map_routes_event_handler.ex
index 214d226e..3e744f28 100644
--- a/lib/wanderer_app_web/live/map/event_handlers/map_routes_event_handler.ex
+++ b/lib/wanderer_app_web/live/map/event_handlers/map_routes_event_handler.ex
@@ -60,7 +60,10 @@ defmodule WandererAppWeb.MapRoutesEventHandler do
 
     ping_system_ids =
       pings
-      |> Enum.map(fn %{system: %{solar_system_id: solar_system_id}} -> "#{solar_system_id}" end)
+      |> Enum.flat_map(fn
+        %{system: %{solar_system_id: solar_system_id}} -> ["#{solar_system_id}"]
+        _ -> []
+      end)
 
     route_hubs = (ping_system_ids ++ hubs) |> Enum.uniq()