diff --git a/tools/parser/att.c b/tools/parser/att.c
index eb0d00b..261dfe6 100644
--- a/tools/parser/att.c
+++ b/tools/parser/att.c
@@ -132,12 +132,35 @@ static const char *attop2str(uint8_t op)
 	}
 }
 
+static void att_mtu_req_dump(int level, struct frame *frm)
+{
+	uint16_t client_rx_mtu = btohs(htons(get_u16(frm)));
+
+	p_indent(level, frm);
+	printf("client rx mtu %d\n", client_rx_mtu);
+}
+
+static void att_mtu_resp_dump(int level, struct frame *frm)
+{
+	uint16_t server_rx_mtu = btohs(htons(get_u16(frm)));
+
+	p_indent(level, frm);
+	printf("server rx mtu %d\n", server_rx_mtu);
+}
+
 static void att_handle_notify_dump(int level, struct frame *frm)
 {
 	uint16_t handle = btohs(htons(get_u16(frm)));
 
 	p_indent(level, frm);
 	printf("handle 0x%2.2x\n", handle);
+
+	p_indent(level, frm);
+	printf("value ");
+	while (frm->len > 0) {
+		printf("0x%.2x ", get_u8(frm));
+	}
+	printf("\n");
 }
 
 void att_dump(int level, struct frame *frm)
@@ -150,6 +173,12 @@ void att_dump(int level, struct frame *frm)
 	printf("ATT: %s (0x%.2x)\n", attop2str(op), op);
 
 	switch (op) {
+		case ATT_OP_MTU_REQ:
+			att_mtu_req_dump(level + 1, frm);
+			break;
+		case ATT_OP_MTU_RESP:
+			att_mtu_resp_dump(level + 1, frm);
+			break;
 		case ATT_OP_HANDLE_NOTIFY:
 			att_handle_notify_dump(level + 1, frm);
 			break;