diff --git a/ble/att.h b/ble/att.h
index 6c42e15cb..626e48059 100644
--- a/ble/att.h
+++ b/ble/att.h
@@ -105,6 +105,7 @@ extern "C" {
 // MARK: GATT UUIDs
 #define GATT_PRIMARY_SERVICE_UUID      0x2800
 #define GATT_SECONDARY_SERVICE_UUID    0x2801
+#define GATT_INCLUDE_SERVICE_UUID      0x2802
 #define GATT_CHARACTERISTICS_UUID      0x2803
 
 #define GAP_SERVICE_UUID          0x1800