diff --git a/assets/audio/R_SPECIAL_SERVICE_001.mp3 b/assets/audio/R_SPECIAL_SERVICE_001.mp3
new file mode 100644
index 0000000..a7f551b
Binary files /dev/null and b/assets/audio/R_SPECIAL_SERVICE_001.mp3 differ
diff --git a/lib/backend/modules/announcement.dart b/lib/backend/modules/announcement.dart
index 0efae87..ea92535 100644
--- a/lib/backend/modules/announcement.dart
+++ b/lib/backend/modules/announcement.dart
@@ -293,10 +293,14 @@ class AnnouncementModule extends InfoModule {
     print("Checkpoint 5");
     await announcementCache.loadAnnouncementsFromBytes(await getBundleBytes(), [audioRoute]);
     print("Checkpoint 6");
-    AudioWrapperSource sourceRoute = !routeNumber.toLowerCase().startsWith("ul") ?
+    late AudioWrapperSource sourceRoute;
+    try {
+      sourceRoute = !routeNumber.toLowerCase().startsWith("ul") ?
       AudioWrapperByteSource(announcementCache[audioRoute]!) :
-      // AudioWrapperByteSource(announcementCache["R_RAIL_REPLACEMENT_SERVICE_001.mp3"]!);
       AudioWrapperAssetSource("audio/R_RAIL_REPLACEMENT_SERVICE_001.mp3");
+    } catch (e) {
+      sourceRoute = AudioWrapperAssetSource("audio/R_SPECIAL_SERVICE_001.mp3");
+    }
 
     if (routeNumber.toLowerCase().startsWith("ul")) {
 
diff --git a/pubspec.yaml b/pubspec.yaml
index ccc186a..6c3cb57 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -93,6 +93,7 @@ flutter:
     - assets/audio/R_RAIL_REPLACEMENT_SERVICE_001.mp3
     - assets/datasets/tube_stations.json
     - assets/audio/rail_replacement/
+    - assets/audio/R_SPECIAL_SERVICE_001.mp3
 
   #   - images/a_dot_burr.jpeg
   #   - images/a_dot_ham.jpeg