diff --git a/Bustle/Loader/Pcap.hs b/Bustle/Loader/Pcap.hs
--- a/Bustle/Loader/Pcap.hs
+++ b/Bustle/Loader/Pcap.hs
@@ -254,4 +254,7 @@
 readPcap path = try $ do
     p <- openOffline path
 
+    -- TODO: check link type header is DLT_DBUS or DLT_NULL (for
+    -- backwards-compatibility)
+
     liftM partitionEithers $ evalStateT (mapBodies p convert) Map.empty
diff --git a/HACKING.md b/HACKING.md
--- a/HACKING.md
+++ b/HACKING.md
@@ -23,8 +23,6 @@
 ```sh
 # Tag release, build and sign the tarballs
 make maintainer-make-release
-gpg --detach-sign --armor dist/bustle-x.y.z.tar.gz
-gpg --detach-sign --armor dist/bustle-x.y.z-x86_64.tar.bz2
 
 # Stick source and binaries on freedesktop.org
 mkdir x.y.z
diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -123,6 +123,8 @@
 	git tag -s -m 'Bustle '`cat dist/build/autogen/version.txt` \
 		bustle-`cat dist/build/autogen/version.txt`
 	make maintainer-binary-tarball
+	gpg --detach-sign --armor dist/bustle-`cat dist/build/autogen/version.txt`.tar.gz
+	gpg --detach-sign --armor dist/bustle-`cat dist/build/autogen/version.txt`-x86_64.tar.bz2
 
 .travis.yml: bustle.cabal make_travis_yml.hs
 	./make_travis_yml.hs $< libpcap-dev libgtk-3-dev libcairo2-dev happy-1.19.4 alex-3.1.3 > $@
diff --git a/NEWS.md b/NEWS.md
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,9 @@
+Bustle 0.5.4 (2016-01-27)
+-------------------------
+
+* A single-byte functional change!
+* Use `DLT_DBUS` link type in pcap files
+
 Bustle 0.5.3 (2016-01-11)
 -------------------------
 
diff --git a/bustle.cabal b/bustle.cabal
--- a/bustle.cabal
+++ b/bustle.cabal
@@ -1,6 +1,6 @@
 Name:           bustle
 Category:       Network, Desktop
-Version:        0.5.3
+Version:        0.5.4
 Cabal-Version:  >= 1.18
 Tested-With:    GHC >= 7.8.4 && < 7.11
 Synopsis:       Draw sequence diagrams of D-Bus traffic
diff --git a/c-sources/pcap-monitor.c b/c-sources/pcap-monitor.c
--- a/c-sources/pcap-monitor.c
+++ b/c-sources/pcap-monitor.c
@@ -23,6 +23,11 @@
 #include <string.h>
 #include <pcap/pcap.h>
 
+#ifndef DLT_DBUS
+# define DLT_DBUS 231
+#endif
+
+
 typedef struct {
     struct timeval ts;
     GByteArray *blob;
@@ -428,8 +433,7 @@
       return FALSE;
     }
 
-  /* FIXME: use DLT_DBUS when it makes it into libpcap. */
-  priv->p = pcap_open_dead (DLT_NULL, 1 << 27);
+  priv->p = pcap_open_dead (DLT_DBUS, 1 << 27);
   if (priv->p == NULL)
     {
       g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,