diff --git a/radicale/sharing/csv.py b/radicale/sharing/csv.py
index c7ce48ed..05d2d9ae 100644
--- a/radicale/sharing/csv.py
+++ b/radicale/sharing/csv.py
@@ -266,7 +266,9 @@ class Sharing(sharing.BaseSharing):
                    "HiddenByOwner": HiddenByOwner,
                    "HiddenByUser": HiddenByUser,
                    "TimestampCreated": Timestamp,
-                   "TimestampUpdated": Timestamp}
+                   "TimestampUpdated": Timestamp,
+                   "Properties": Properties}
+
             if logger.isEnabledFor(logging.DEBUG):
                 logger.debug("TRACE/sharing/*/create: add row: %r", row)
             self._sharing_cache.append(row)
diff --git a/radicale/sharing/files.py b/radicale/sharing/files.py
index fba8bdd6..a9c1413f 100644
--- a/radicale/sharing/files.py
+++ b/radicale/sharing/files.py
@@ -244,7 +244,8 @@ class Sharing(sharing.BaseSharing):
                "HiddenByOwner": HiddenByOwner,
                "HiddenByUser": HiddenByUser,
                "TimestampCreated": Timestamp,
-               "TimestampUpdated": Timestamp}
+               "TimestampUpdated": Timestamp,
+               "Properties": Properties}
 
         version = DB_VERSION