diff --git a/lpcsnoop/snoop.hpp b/lpcsnoop/snoop.hpp
index 2c89127..68d51b4 100644
--- a/lpcsnoop/snoop.hpp
+++ b/lpcsnoop/snoop.hpp
@@ -13,6 +13,9 @@
 using ServerObject = typename sdbusplus::server::object::object<T...>;
 using PostInterface = sdbusplus::xyz::openbmc_project::State::Boot::server::Raw;
 using PostObject = ServerObject<PostInterface>;
+using primary_post_code_t = uint64_t;
+using secondary_post_code_t = std::vector<uint8_t>;
+using postcode_t = std::tuple<primary_post_code_t, secondary_post_code_t>;
 
 class PostReporter : public PostObject
 {