diff --git a/include/haproxy/xprt_quic-t.h b/include/haproxy/xprt_quic-t.h
index 368b5cba8..bf4f5f504 100644
--- a/include/haproxy/xprt_quic-t.h
+++ b/include/haproxy/xprt_quic-t.h
@@ -257,15 +257,15 @@ struct preferred_address {
 };
 
 /* Default values for some of transport parameters */
-#define QUIC_DFLT_MAX_PACKET_SIZE     65527
-#define QUIC_DFLT_ACK_DELAY_COMPONENT     3 /* milliseconds */
-#define QUIC_DFLT_MAX_ACK_DELAY          25 /* milliseconds */
+#define QUIC_DFLT_MAX_UDP_PAYLOAD_SIZE   65527 /* bytes */
+#define QUIC_DFLT_ACK_DELAY_COMPONENT        3 /* milliseconds */
+#define QUIC_DFLT_MAX_ACK_DELAY             25 /* milliseconds */
 
 /* Types of QUIC transport parameters */
 #define QUIC_TP_ORIGINAL_DESTINATION_CONNECTION_ID   0
 #define QUIC_TP_IDLE_TIMEOUT                         1
 #define QUIC_TP_STATELESS_RESET_TOKEN                2
-#define QUIC_TP_MAX_PACKET_SIZE                      3
+#define QUIC_TP_MAX_UDP_PAYLOAD_SIZE                 3
 #define QUIC_TP_INITIAL_MAX_DATA                     4
 #define QUIC_TP_INITIAL_MAX_STREAM_DATA_BIDI_LOCAL   5
 #define QUIC_TP_INITIAL_MAX_STREAM_DATA_BIDI_REMOTE  6
@@ -294,15 +294,15 @@ struct preferred_address {
  */
 struct quic_transport_params {
 	uint64_t idle_timeout;
-	uint64_t max_packet_size;                                      /* Default: 65527 (max of UDP payload for IPv6) */
+	uint64_t max_udp_payload_size;                 /* Default: 65527 bytes (max of UDP payload for IPv6) */
 	uint64_t initial_max_data;
 	uint64_t initial_max_stream_data_bidi_local;
 	uint64_t initial_max_stream_data_bidi_remote;
 	uint64_t initial_max_stream_data_uni;
 	uint64_t initial_max_streams_bidi;
 	uint64_t initial_max_streams_uni;
-	uint64_t ack_delay_exponent;                                   /* Default: 3, max: 20 */
-	uint64_t max_ack_delay;                                        /* Default: 3ms, max: 2^14ms*/
+	uint64_t ack_delay_exponent;                   /* Default: 3, max: 20 */
+	uint64_t max_ack_delay;                        /* Default: 3ms, max: 2^14ms*/
 	uint64_t active_connection_id_limit;
 
 	/* Booleans */
diff --git a/include/haproxy/xprt_quic.h b/include/haproxy/xprt_quic.h
index ce01a6478..1e4d684a1 100644
--- a/include/haproxy/xprt_quic.h
+++ b/include/haproxy/xprt_quic.h
@@ -422,9 +422,9 @@ static inline unsigned int quic_ack_delay_ms(struct quic_ack *ack_frm,
  */
 static inline void quic_dflt_transport_params_cpy(struct quic_transport_params *dst)
 {
-	dst->max_packet_size    = quic_dflt_transport_params.max_packet_size;
-	dst->ack_delay_exponent = quic_dflt_transport_params.ack_delay_exponent;
-	dst->max_ack_delay      = quic_dflt_transport_params.max_ack_delay;
+	dst->max_udp_payload_size = quic_dflt_transport_params.max_udp_payload_size;
+	dst->ack_delay_exponent   = quic_dflt_transport_params.ack_delay_exponent;
+	dst->max_ack_delay        = quic_dflt_transport_params.max_ack_delay;
 }
 
 /* Initialize <p> transport parameters depending <server> boolean value which
@@ -582,8 +582,8 @@ static inline int quic_transport_param_decode(struct quic_transport_params *p,
 		if (!quic_dec_int(&p->idle_timeout, buf, end))
 			return 0;
 		break;
-	case QUIC_TP_MAX_PACKET_SIZE:
-		if (!quic_dec_int(&p->max_packet_size, buf, end))
+	case QUIC_TP_MAX_UDP_PAYLOAD_SIZE:
+		if (!quic_dec_int(&p->max_udp_payload_size, buf, end))
 			return 0;
 		break;
 	case QUIC_TP_INITIAL_MAX_DATA:
@@ -764,8 +764,8 @@ static inline int quic_transport_params_encode(unsigned char *buf,
 	 * "max_packet_size" transport parameter must be transmitted only if different
 	 * of the default value.
 	 */
-	if (p->max_packet_size != QUIC_DFLT_MAX_PACKET_SIZE &&
-	    !quic_transport_param_enc_int(&pos, end, QUIC_TP_MAX_PACKET_SIZE, p->max_packet_size))
+	if (p->max_udp_payload_size != QUIC_DFLT_MAX_UDP_PAYLOAD_SIZE &&
+	    !quic_transport_param_enc_int(&pos, end, QUIC_TP_MAX_UDP_PAYLOAD_SIZE, p->max_udp_payload_size))
 		return 0;
 
 	if (p->initial_max_data &&
diff --git a/src/xprt_quic.c b/src/xprt_quic.c
index d926b8210..327c3ce3a 100644
--- a/src/xprt_quic.c
+++ b/src/xprt_quic.c
@@ -50,9 +50,9 @@
 #include <haproxy/xprt_quic.h>
 
 struct quic_transport_params quic_dflt_transport_params = {
-	.max_packet_size    = QUIC_DFLT_MAX_PACKET_SIZE,
-	.ack_delay_exponent = QUIC_DFLT_ACK_DELAY_COMPONENT,
-	.max_ack_delay      = QUIC_DFLT_MAX_ACK_DELAY,
+	.max_udp_payload_size = QUIC_DFLT_MAX_UDP_PAYLOAD_SIZE,
+	.ack_delay_exponent   = QUIC_DFLT_ACK_DELAY_COMPONENT,
+	.max_ack_delay        = QUIC_DFLT_MAX_ACK_DELAY,
 };
 
 /* trace source and events */