diff --git a/libpldmresponder/pdr_utils.hpp b/libpldmresponder/pdr_utils.hpp
index 1f03863..6df5d94 100644
--- a/libpldmresponder/pdr_utils.hpp
+++ b/libpldmresponder/pdr_utils.hpp
@@ -51,6 +51,8 @@
 /** @brief Map of DBus property State to attribute value
  */
 using StatestoDbusVal = std::map<State, pldm::utils::PropertyValue>;
+using DbusMappings = std::vector<pldm::utils::DBusMapping>;
+using DbusValMaps = std::vector<StatestoDbusVal>;
 
 /** @brief Parse PDR JSON file and output Json object
  *