diff --git a/webdav.diff b/webdav.diff
new file mode 100644
index 0000000..faa8bc1
--- /dev/null
+++ b/webdav.diff
@@ -0,0 +1,60 @@
+diff -U 3 -dHrN -- a/health_caldav/setup.py b/health_caldav/setup.py
+--- a/health_caldav/setup.py	2021-01-29 00:16:22.579731378 +0100
++++ b/health_caldav/setup.py	2021-04-28 19:09:21.063707816 +0200
+@@ -47,13 +47,13 @@
+     url='https://www.gnuhealth.org',
+     download_url='http://ftp.gnu.org/gnu/health/',
+     keywords='GNUHealth calendar caldav',
+-    package_dir={'trytond.modules.calendar': '.'},
++    package_dir={'trytond.modules.health_caldav': '.'},
+     packages=[
+-        'trytond.modules.calendar',
+-        'trytond.modules.calendar.tests',
++        'trytond.modules.health_caldav',
++        'trytond.modules.health_caldav.tests',
+         ],
+     package_data={
+-        'trytond.modules.calendar': (info.get('xml', [])
++        'trytond.modules.health_caldav': (info.get('xml', [])
+             + ['tryton.cfg', 'view/*.xml', 'locale/*.po']),
+         },
+     classifiers=[
+@@ -79,7 +79,7 @@
+     zip_safe=False,
+     entry_points="""
+     [trytond.modules]
+-    calendar = trytond.modules.calendar
++    calendar = trytond.modules.health_caldav
+     """,
+     test_suite='tests',
+     test_loader='trytond.test_loader:Loader',
+diff -U 3 -dHrN -- a/health_webdav3_server/setup.py b/health_webdav3_server/setup.py
+--- a/health_webdav3_server/setup.py	2021-02-14 01:56:43.480016164 +0100
++++ b/health_webdav3_server/setup.py	2021-04-28 15:15:55.966534040 +0200
+@@ -63,13 +63,13 @@
+     url='https://www.gnuhealth.org',
+     download_url='http://ftp.gnu.org/gnu/health/',
+     keywords='webdav GNUHealth',
+-    package_dir={'trytond.modules.webdav': '.'},
++    package_dir={'trytond.modules.gnuhealth_webdav3_server': '.'},
+     packages=[
+-        'trytond.modules.webdav',
+-        'trytond.modules.webdav.tests',
++        'trytond.modules.gnuhealth_webdav3_server',
++        'trytond.modules.gnuhealth_webdav3_server.tests',
+         ],
+     package_data={
+-        'trytond.modules.webdav': (info.get('xml', [])
++        'trytond.modules.gnuhealth_webdav3_server': (info.get('xml', [])
+             + ['tryton.cfg', 'view/*.xml', 'locale/*.po', '*.fodt',
+                 'icons/*.svg', 'tests/*.rst']),
+         },
+@@ -93,7 +93,7 @@
+     zip_safe=False,
+     entry_points="""
+     [trytond.modules]
+-    webdav = trytond.modules.webdav
++    webdav = trytond.modules.gnuhealth_webdav3_server
+     """,
+     test_suite='tests',
+     test_loader='trytond.test_loader:Loader',