diff --git a/libpldmresponder/bios.hpp b/libpldmresponder/bios.hpp
index 80a732b..915a367 100644
--- a/libpldmresponder/bios.hpp
+++ b/libpldmresponder/bios.hpp
@@ -2,20 +2,24 @@
 
 #include <stdint.h>
 
+#include <vector>
+
 #include "libpldm/bios.h"
 
 namespace pldm
 {
 
+using Response = std::vector<uint8_t>;
+
 namespace responder
 {
 
 /** @brief Handler for GetDateTime
  *
  *  @param[in] request - Request message payload
- *  @param[out] response - Response message written here
+ *  @param[return] Response - PLDM Response message
  */
-void getDateTime(const pldm_msg_payload* request, pldm_msg* response);
+Response getDateTime(const pldm_msg* request);
 
 namespace utils
 {