diff --git a/include/inc-util/register.hpp b/include/inc-util/register.hpp
index 869b052c2465ba839f9218505c1d04da4026331e..a4db21f2f6b6f632217299507bf3170eda34e740 100644
--- a/include/inc-util/register.hpp
+++ b/include/inc-util/register.hpp
@@ -56,5 +56,6 @@ namespace IRDB_SDK
 	RegisterID_t convertRegisterTo64bit (const RegisterID_t p_reg);
 	RegisterID_t convertRegisterTo32bit (const RegisterID_t p_reg);
 	RegisterID_t convertRegisterTo16bit (const RegisterID_t p_reg);
+	RegisterID_t convertRegisterTo8bit  (const RegisterID_t p_reg);
 
 }