diff -Nru keybinder-0.3.1/debian/changelog keybinder-0.3.1/debian/changelog
--- keybinder-0.3.1/debian/changelog	2019-10-23 02:02:17.000000000 +0000
+++ keybinder-0.3.1/debian/changelog	2020-04-13 07:56:40.000000000 +0000
@@ -1,3 +1,10 @@
+keybinder (0.3.1-2ubuntu1) focal; urgency=medium
+
+  * Remove empty Object Hierarchy section from documentation index to fix
+    build with gtk-doc 1.32.
+
+ -- William Grant <wgrant@ubuntu.com>  Mon, 13 Apr 2020 17:56:40 +1000
+
 keybinder (0.3.1-2) unstable; urgency=medium
 
   [ Ondřej Nový ]
diff -Nru keybinder-0.3.1/debian/control keybinder-0.3.1/debian/control
--- keybinder-0.3.1/debian/control	2019-10-23 02:02:17.000000000 +0000
+++ keybinder-0.3.1/debian/control	2020-04-13 07:56:40.000000000 +0000
@@ -1,7 +1,8 @@
 Source: keybinder
 Section: libs
 Priority: optional
-Maintainer: Andrew Starr-Bochicchio <asb@debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Andrew Starr-Bochicchio <asb@debian.org>
 Build-Depends: debhelper-compat (= 12),
                dh-sequence-gir,
                pkg-config (>= 0.9.0),
diff -Nru keybinder-0.3.1/debian/patches/fix-gtk-doc-1.32.patch keybinder-0.3.1/debian/patches/fix-gtk-doc-1.32.patch
--- keybinder-0.3.1/debian/patches/fix-gtk-doc-1.32.patch	1970-01-01 00:00:00.000000000 +0000
+++ keybinder-0.3.1/debian/patches/fix-gtk-doc-1.32.patch	2020-04-13 07:56:40.000000000 +0000
@@ -0,0 +1,15 @@
+Index: keybinder-0.3.1/docs/keybinder-docs.sgml
+===================================================================
+--- keybinder-0.3.1.orig/docs/keybinder-docs.sgml
++++ keybinder-0.3.1/docs/keybinder-docs.sgml
+@@ -21,10 +21,6 @@
+         <xi:include href="xml/keybinder.xml"/>
+ 
+   </chapter>
+-  <chapter id="object-tree">
+-    <title>Object Hierarchy</title>
+-     <xi:include href="xml/tree_index.sgml"/>
+-  </chapter>
+   <index id="api-index-full">
+     <title>API Index</title>
+     <xi:include href="xml/api-index-full.xml"><xi:fallback /></xi:include>
diff -Nru keybinder-0.3.1/debian/patches/series keybinder-0.3.1/debian/patches/series
--- keybinder-0.3.1/debian/patches/series	2019-10-23 02:02:17.000000000 +0000
+++ keybinder-0.3.1/debian/patches/series	2020-04-13 07:55:22.000000000 +0000
@@ -1,2 +1,3 @@
 Xkb.patch
 python-multiarch-header-path.patch
+fix-gtk-doc-1.32.patch