diff -Nru geany-1.37.1/debian/changelog geany-1.37.1/debian/changelog
--- geany-1.37.1/debian/changelog	2020-11-13 14:56:12.000000000 +0000
+++ geany-1.37.1/debian/changelog	2021-04-03 19:10:24.000000000 +0000
@@ -1,3 +1,13 @@
+geany (1.37.1-3) unstable; urgency=medium
+
+  * [dcda3cb] Enable gtkdoc-header
+  * [87184ff] Build-dep on doxygen and python3-lxml for gtkdoc header
+  * [4df6484] Patch to use python3 for generating gtkdoc header
+  * [376d2c3] Recommend sensible-utils.
+    We use sensible-browser
+
+ -- Chow Loong Jin <hyperair@debian.org>  Sun, 04 Apr 2021 03:10:24 +0800
+
 geany (1.37.1-2) unstable; urgency=medium
 
   * Reupload to unstable now that geany-plugins has cleared NEW
diff -Nru geany-1.37.1/debian/control geany-1.37.1/debian/control
--- geany-1.37.1/debian/control	2020-11-13 14:56:12.000000000 +0000
+++ geany-1.37.1/debian/control	2021-04-03 19:10:24.000000000 +0000
@@ -14,7 +14,9 @@
                libpango1.0-dev,
                intltool,
                chrpath,
-               dh-autoreconf
+               dh-autoreconf,
+               doxygen,
+               python3-lxml
 Standards-Version: 4.2.0
 
 Package: geany
@@ -23,6 +25,7 @@
 Pre-Depends: ${misc:Pre-Depends}
 Provides: ${geany:Provides}
 Breaks: geany-plugins-common (<< 0.21)
+Recommends: sensible-utils
 Suggests: libvte9, doc-base
 Description: fast and lightweight IDE
  Geany is a small and lightweight integrated development environment.
diff -Nru geany-1.37.1/debian/patches/series geany-1.37.1/debian/patches/series
--- geany-1.37.1/debian/patches/series	2020-11-13 14:56:12.000000000 +0000
+++ geany-1.37.1/debian/patches/series	2021-04-03 19:10:24.000000000 +0000
@@ -4,3 +4,4 @@
 20_use_sensible_browser.patch
 20_load_plugins_from_all_paths.patch
 20_use_x_terminal_emulator.patch
+Use-python3-for-generating-gtkdoc-header.patch
diff -Nru geany-1.37.1/debian/patches/Use-python3-for-generating-gtkdoc-header.patch geany-1.37.1/debian/patches/Use-python3-for-generating-gtkdoc-header.patch
--- geany-1.37.1/debian/patches/Use-python3-for-generating-gtkdoc-header.patch	1970-01-01 00:00:00.000000000 +0000
+++ geany-1.37.1/debian/patches/Use-python3-for-generating-gtkdoc-header.patch	2021-04-03 19:10:24.000000000 +0000
@@ -0,0 +1,21 @@
+From: Chow Loong Jin <hyperair@debian.org>
+Date: Sun, 4 Apr 2021 02:08:19 +0800
+Subject: Use python3 for generating gtkdoc header
+
+---
+ m4/geany-gtkdoc-header.m4 | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/m4/geany-gtkdoc-header.m4 b/m4/geany-gtkdoc-header.m4
+index 2b6d87f..b8828f1 100644
+--- a/m4/geany-gtkdoc-header.m4
++++ b/m4/geany-gtkdoc-header.m4
+@@ -21,7 +21,7 @@ AC_DEFUN([GEANY_CHECK_GTKDOC_HEADER],
+ 	      [test "x$geany_enable_gtkdoc_header" != "xno"],
+ 	[
+ 		dnl python
+-		AM_PATH_PYTHON([2.7], [have_python=yes], [have_python=no])
++		AM_PATH_PYTHON([3], [have_python=yes], [have_python=no])
+ 		dnl lxml module
+ 		AS_IF([test "x$have_python" = xyes],
+ 		      [have_python_and_lxml=yes
diff -Nru geany-1.37.1/debian/rules geany-1.37.1/debian/rules
--- geany-1.37.1/debian/rules	2020-11-13 14:56:12.000000000 +0000
+++ geany-1.37.1/debian/rules	2021-04-03 19:10:24.000000000 +0000
@@ -10,7 +10,11 @@
 	NOCONFIGURE=1 dh_autoreconf ./autogen.sh
 
 override_dh_auto_configure:
-	dh_auto_configure -- --enable-vte --enable-the-force --enable-gtk3
+	dh_auto_configure --                    \
+		--enable-vte                    \
+		--enable-the-force              \
+		--enable-gtk3                   \
+		--enable-gtkdoc-header
 	sed -i -r 's,^sys_lib_dlsearch_path_spec="(.*)$$,sys_lib_dlsearch_path_spec="/usr/lib /lib \1,' $(CURDIR)/libtool
 
 override_dh_auto_install: