diff --git a/mastus/radicale.nix b/mastus/radicale.nix
index 0befcf8..91e19fd 100644
--- a/mastus/radicale.nix
+++ b/mastus/radicale.nix
@@ -6,7 +6,9 @@ in
   services.radicale = {
     enable = true;
     package = pkgs.radicale3.overrideDerivation (_: {
-      #patches = [ ./radicale1249.patch ];
+      patches = [ ./radicale1249.patch ];
+      doCheck = false;
+      pytestCheckPhase = "true";
     });
     settings = {
       server = {
diff --git a/mastus/radicale1249.patch b/mastus/radicale1249.patch
index 372adfe..9aa64cf 100644
--- a/mastus/radicale1249.patch
+++ b/mastus/radicale1249.patch
@@ -1,7 +1,8 @@
-diff -urN radicale/app/propfind.py radicale/app/propfind.py
---- radicale/app/propfind.py	2022-04-20 17:57:41.000000000 +0200
-+++ radicale/app/propfind.py	2022-06-01 07:33:33.000000000 +0200
-@@ -350,8 +350,8 @@
+diff --git a/radicale/app/propfind.py b/radicale/app/propfind.py
+index 52d0b00..ee7cf28 100644
+--- a/radicale/app/propfind.py
++++ b/radicale/app/propfind.py
+@@ -350,8 +350,8 @@ class ApplicationPartPropfind(ApplicationBase):
                  permission = "r"
                  status = "read"
              else:
@@ -12,7 +13,7 @@ diff -urN radicale/app/propfind.py radicale/app/propfind.py
              logger.debug(
                  "%s has %s access to %s",
                  repr(user) if user else "anonymous user", status, target)
-@@ -362,8 +362,8 @@
+@@ -362,8 +362,8 @@ class ApplicationPartPropfind(ApplicationBase):
                      path: str, user: str) -> types.WSGIResponse:
          """Manage PROPFIND request."""
          access = Access(self._rights, user, path)
@@ -23,7 +24,7 @@ diff -urN radicale/app/propfind.py radicale/app/propfind.py
          try:
              xml_content = self._read_xml_request_body(environ)
          except RuntimeError as e:
-@@ -380,8 +380,8 @@
+@@ -380,8 +380,8 @@ class ApplicationPartPropfind(ApplicationBase):
              item = next(items_iter, None)
              if not item:
                  return httputils.NOT_FOUND
@@ -34,10 +35,3 @@ diff -urN radicale/app/propfind.py radicale/app/propfind.py
              # put item back
              items_iter = itertools.chain([item], items_iter)
              allowed_items = self._collect_allowed_items(items_iter, user)
-@@ -390,5 +390,6 @@
-             xml_answer = xml_propfind(base_prefix, path, xml_content,
-                                       allowed_items, user, self._encoding)
-             if xml_answer is None:
-+                logger.warning("xml_propfind returned no answer")
-                 return httputils.NOT_ALLOWED
-             return client.MULTI_STATUS, headers, self._xml_response(xml_answer)