diff --git a/pldmtool/pldm_cmd_helper.hpp b/pldmtool/pldm_cmd_helper.hpp
index e668974..de33d53 100644
--- a/pldmtool/pldm_cmd_helper.hpp
+++ b/pldmtool/pldm_cmd_helper.hpp
@@ -60,6 +60,16 @@
     std::cout << data.dump(4) << std::endl;
 }
 
+/**
+ * @brief Maps numeric PLDM completion codes to human-readable strings
+ *
+ * @param[in] completionCode - Numeric PLDM completion code returned in response
+ * @param[in] data - The JSON data to which the completion code is added.
+ * @param[in] pldmType - PLDM type
+ */
+void fillCompletionCode(uint8_t completionCode, ordered_json& data,
+                        uint8_t pldmType);
+
 /** @brief MCTP socket read/receive
  *
  *  @param[in]  requestMsg - Request message to compare against loopback