diff --git a/src/modules/module-avb/gptp.c b/src/modules/module-avb/gptp.c
index 1ff824e62..e3cd88c8b 100644
--- a/src/modules/module-avb/gptp.c
+++ b/src/modules/module-avb/gptp.c
@@ -224,7 +224,7 @@ static int send_management_request(struct gptp *gptp, uint16_t management_id,
 	spa_zero(req);
 
 	seq = gptp->ptp_seq++;
-	req.major_sdo_id_message_type = PTP_MESSAGE_TYPE_MANAGEMENT;
+	req.major_sdo_id_message_type = PTP_GPTP_MANAGEMENT_TYPE;
 	req.ver = PTP_VERSION_1588_2008_2_1;
 	req.message_length_be = htons(sizeof(struct ptp_management_msg));
 	spa_zero(req.clock_identity);
diff --git a/src/modules/module-avb/gptp.h b/src/modules/module-avb/gptp.h
index 631f37df9..2e66f6b4f 100644
--- a/src/modules/module-avb/gptp.h
+++ b/src/modules/module-avb/gptp.h
@@ -16,6 +16,9 @@ extern "C" {
 #endif
 
 #define PTP_MESSAGE_TYPE_MANAGEMENT 0x0d
+#define PTP_MAJOR_SDO_ID_GPTP (0x1u << 4)
+#define PTP_GPTP_MANAGEMENT_TYPE \
+	(PTP_MAJOR_SDO_ID_GPTP | PTP_MESSAGE_TYPE_MANAGEMENT)
 #define PTP_VERSION_1588_2008_2_1 0x12
 #define PTP_DEFAULT_LOG_MESSAGE_INTERVAL 127
 #define PTP_MGMT_ACTION_GET 0