diff --git a/core/gps_extended_c.h b/core/gps_extended_c.h
index 27deb442..cc7d31ec 100644
--- a/core/gps_extended_c.h
+++ b/core/gps_extended_c.h
@@ -416,6 +416,7 @@ typedef enum loc_api_adapter_msg_to_check_supported {
     LOC_API_ADAPTER_MESSAGE_DISTANCE_BASE_TRACKING,          // DBT 2.0
     LOC_API_ADAPTER_MESSAGE_ADAPTIVE_LOCATION_BATCHING,      // Batching 1.5
     LOC_API_ADAPTER_MESSAGE_DISTANCE_BASE_LOCATION_BATCHING, // Batching 2.0
+    LOC_API_ADAPTER_MESSAGE_UPDATE_TBF_ON_THE_FLY,           // Updating Tracking TBF On The Fly
 
     LOC_API_ADAPTER_MESSAGE_MAX
 } LocCheckingMessagesID;