diff --git a/sensorhandler.hpp b/sensorhandler.hpp
index 954a3ed..64cfa0e 100644
--- a/sensorhandler.hpp
+++ b/sensorhandler.hpp
@@ -155,7 +155,7 @@
 namespace request
 {
 
-inline uint8_t get_reservation_id(GetSdrReq* req)
+inline uint16_t get_reservation_id(GetSdrReq* req)
 {
     return (req->reservation_id_lsb + (req->reservation_id_msb << 8));
 };