diff --git a/user_channel/user_layer.hpp b/user_channel/user_layer.hpp
index b0d0d4c..0639474 100644
--- a/user_channel/user_layer.hpp
+++ b/user_channel/user_layer.hpp
@@ -143,6 +143,15 @@
  */
 Cc ipmiUserSetUserName(const uint8_t userId, const char* userName);
 
+/** @brief set's user name
+ *
+ *  @param[in] userId - user id
+ *  @param[in] userName - user name
+ *
+ *  @return ccSuccess for success, others for failure.
+ */
+Cc ipmiUserSetUserName(const uint8_t userId, const std::string& userName);
+
 /** @brief set user password
  *
  *  @param[in] userId - user id