diff --git a/pcap-common.c b/pcap-common.c
index 5f6a929..3989dfc 100644
--- a/pcap-common.c
+++ b/pcap-common.c
@@ -735,6 +735,24 @@ static const char rcsid[] _U_ =
  */
 #define LINKTYPE_IEEE802_15_4_NOFCS		230
 
+/*
+ * Raw D-Bus:
+ *
+ *	http://www.freedesktop.org/wiki/Software/dbus
+ *
+ * messages:
+ *
+ *	http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-messages
+ *
+ * starting with the endianness flag, followed by the message type, etc.,
+ * but without the authentication handshake before the message sequence:
+ *
+ *	http://dbus.freedesktop.org/doc/dbus-specification.html#auth-protocol
+ *
+ * Requested by Martin Vidner <martin@vidner.net>.
+ */
+#define LINKTYPE_DBUS				231
+
 
 static struct linktype_map {
 	int	dlt;
@@ -1084,6 +1102,9 @@ static struct linktype_map {
 	/* IEEE 802.15.4 exactly as it appears in the spec, without FCS */
 	{ DLT_IEEE802_15_4_NOFCS, LINKTYPE_IEEE802_15_4_NOFCS },
 
+	/* D-Bus messages */
+	{ DLT_DBUS,		LINKTYPE_DBUS },
+
 	{ -1,			-1 }
 };
 
diff --git a/pcap/bpf.h b/pcap/bpf.h
index 6048fff..9b662b9 100644
--- a/pcap/bpf.h
+++ b/pcap/bpf.h
@@ -969,6 +969,24 @@ struct bpf_version {
  */
 #define DLT_IEEE802_15_4_NOFCS		230
 
+/*
+ * Raw D-Bus:
+ *
+ *	http://www.freedesktop.org/wiki/Software/dbus
+ *
+ * messages:
+ *
+ *	http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-messages
+ *
+ * starting with the endianness flag, followed by the message type, etc.,
+ * but without the authentication handshake before the message sequence:
+ *
+ *	http://dbus.freedesktop.org/doc/dbus-specification.html#auth-protocol
+ *
+ * Requested by Martin Vidner <martin@vidner.net>.
+ */
+#define DLT_DBUS			231
+
 /*
  * DLT and savefile link type values are split into a class and
  * a member of that class.  A class value of 0 indicates a regular