diff --git a/backend/src/app.py b/backend/src/app.py
index b32aac1..e027da2 100644
--- a/backend/src/app.py
+++ b/backend/src/app.py
@@ -150,6 +150,7 @@ def room():
             "name": room.name,
             "private": room.pin is not None,
             "coords": room.coord,
+            "range": room.range_size,
         }
         for room in state.rooms.values()
     ]