diff --git a/scripts/models/broadcastArea.ts b/scripts/models/broadcastArea.ts
index 8949b375dd..cd74efcefd 100644
--- a/scripts/models/broadcastArea.ts
+++ b/scripts/models/broadcastArea.ts
@@ -31,6 +31,7 @@ export class BroadcastArea {
           const city: City = citiesKeyByCode.get(code)
           if (!city) return
           citiesIncluded.add(city)
+          if (city.subdivision) subdivisionsIncluded.add(city.subdivision)
         }
         case 's': {
           const subdivision: Subdivision = subdivisionsKeyByCode.get(code)