diff --git a/src/transport/af-mctp.c b/src/transport/af-mctp.c
index f499a72..5084f7d 100644
--- a/src/transport/af-mctp.c
+++ b/src/transport/af-mctp.c
@@ -1,4 +1,5 @@
-#include "../mctp-defines.h"
+#include "config.h"
+#include "mctp-defines.h"
 #include "base.h"
 #include "container-of.h"
 #include "libpldm/pldm.h"
@@ -25,12 +26,14 @@
 #define transport_to_af_mctp(ptr)                                              \
 	container_of(ptr, struct pldm_transport_af_mctp, transport)
 
+LIBPLDM_ABI_TESTING
 struct pldm_transport *
 pldm_transport_af_mctp_core(struct pldm_transport_af_mctp *ctx)
 {
 	return &ctx->transport;
 }
 
+LIBPLDM_ABI_TESTING
 int pldm_transport_af_mctp_init_pollfd(struct pldm_transport *t,
 				       struct pollfd *pollfd)
 {
@@ -54,6 +57,7 @@
 	return -1;
 }
 
+LIBPLDM_ABI_TESTING
 int pldm_transport_af_mctp_map_tid(struct pldm_transport_af_mctp *ctx,
 				   pldm_tid_t tid, mctp_eid_t eid)
 {
@@ -62,6 +66,7 @@
 	return 0;
 }
 
+LIBPLDM_ABI_TESTING
 int pldm_transport_af_mctp_unmap_tid(struct pldm_transport_af_mctp *ctx,
 				     __attribute__((unused)) pldm_tid_t tid,
 				     mctp_eid_t eid)
@@ -122,6 +127,7 @@
 	return PLDM_REQUESTER_SUCCESS;
 }
 
+LIBPLDM_ABI_TESTING
 int pldm_transport_af_mctp_init(struct pldm_transport_af_mctp **ctx)
 {
 	if (!ctx || *ctx) {
@@ -147,6 +153,7 @@
 	return 0;
 }
 
+LIBPLDM_ABI_TESTING
 void pldm_transport_af_mctp_destroy(struct pldm_transport_af_mctp *ctx)
 {
 	if (!ctx) {