diff -Nru gnucash-2.6.17/debian/changelog gnucash-2.6.17/debian/changelog
--- gnucash-2.6.17/debian/changelog	2017-07-08 13:22:48.000000000 +0000
+++ gnucash-2.6.17/debian/changelog	2017-09-20 18:43:43.000000000 +0000
@@ -1,3 +1,10 @@
+gnucash (1:2.6.17-1ubuntu1) artful; urgency=medium
+
+  * debian/patches/fix-test-for-gobject-messages.patch: fix test case to
+    work with newer gobject.
+
+ -- Steve Langasek <steve.langasek@ubuntu.com>  Wed, 20 Sep 2017 11:43:43 -0700
+
 gnucash (1:2.6.17-1) unstable; urgency=medium
 
   * New upstream release [July 2017].
diff -Nru gnucash-2.6.17/debian/control gnucash-2.6.17/debian/control
--- gnucash-2.6.17/debian/control	2017-07-08 13:20:55.000000000 +0000
+++ gnucash-2.6.17/debian/control	2017-09-20 18:43:43.000000000 +0000
@@ -1,7 +1,8 @@
 Source: gnucash
 Section: gnome
 Priority: optional
-Maintainer: Dmitry Smirnov <onlyjob@debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Dmitry Smirnov <onlyjob@debian.org>
 Standards-Version: 4.0.0
 Build-Depends: debhelper (>= 10), intltool, pkg-config, dh-autoreconf, dh-python,
  guile-2.0-dev,
diff -Nru gnucash-2.6.17/debian/patches/fix-test-for-gobject-messages.patch gnucash-2.6.17/debian/patches/fix-test-for-gobject-messages.patch
--- gnucash-2.6.17/debian/patches/fix-test-for-gobject-messages.patch	1970-01-01 00:00:00.000000000 +0000
+++ gnucash-2.6.17/debian/patches/fix-test-for-gobject-messages.patch	2017-09-20 18:43:37.000000000 +0000
@@ -0,0 +1,31 @@
+Description: fix test case to work with newer gobject
+ glib 2.54 changes the error string returned by a particular wrong call
+ to g_object_set().  gnucash's testsuite relies on matching the exact
+ text of this error string.  This is a wrong thing for the testsuite to do
+ - nothing in gnucash outside of the testsuite relies on this behavior, and
+ it's testing behavior of glib not of gnucash - but for the moment, here is
+ a patch that updates the expected string to match current glib.
+Author: Steve Langasek <steve.langasek@ubuntu.com>
+
+Index: gnucash-2.6.17/src/engine/test/utest-Transaction.c
+===================================================================
+--- gnucash-2.6.17.orig/src/engine/test/utest-Transaction.c
++++ gnucash-2.6.17/src/engine/test/utest-Transaction.c
+@@ -412,7 +412,7 @@
+                           "GNR", "", 240), *t_curr = NULL;
+     Timespec now = timespec_now (), *t_entered = NULL, *t_posted = NULL;
+     time_t secs = (time_t)now.tv_sec;
+-    gchar *msg1 = "g_object_set_valist: object class " _Q "Transaction' has no property named " _Q "bogus'";
++    gchar *msg1 = "g_object_set_is_valid_property: object class " _Q "Transaction' has no property named " _Q "bogus'";
+     gchar *msg2 = g_strdup_printf ("[xaccTransSetDateInternal] addr=%p set date to %" G_GUINT64_FORMAT ".%09ld %s",
+                                    txn, now.tv_sec, now.tv_nsec, ctime (&secs));
+     GLogLevelFlags loglevel1 = G_LOG_LEVEL_WARNING | G_LOG_FLAG_FATAL;
+@@ -453,7 +453,7 @@
+     g_assert_cmpint (check2->hits, ==, 2);
+ 
+     g_free (check1->msg);
+-    check1->msg = g_strdup ("g_object_get_valist: object class " _Q "Transaction' has no property named " _Q "bogus'");
++    check1->msg = g_strdup ("g_object_get_is_valid_property: object class " _Q "Transaction' has no property named " _Q "bogus'");
+     g_object_get (G_OBJECT (txn),
+                   "num", &t_num,
+                   "description", &t_desc,
diff -Nru gnucash-2.6.17/debian/patches/series gnucash-2.6.17/debian/patches/series
--- gnucash-2.6.17/debian/patches/series	2016-12-21 21:24:42.000000000 +0000
+++ gnucash-2.6.17/debian/patches/series	2017-09-20 18:19:43.000000000 +0000
@@ -1 +1,2 @@
 hardening-fortify.patch
+fix-test-for-gobject-messages.patch