diff --git a/carddav/elements.go b/carddav/elements.go
index 5a0ca71..718b769 100644
--- a/carddav/elements.go
+++ b/carddav/elements.go
@@ -15,6 +15,8 @@ var (
 	addressBookDescriptionName = xml.Name{namespace, "addressbook-description"}
 	addressBookQueryName       = xml.Name{namespace, "addressbook-query"}
 	addressBookMultigetName    = xml.Name{namespace, "addressbook-multiget"}
+
+	addressDataName = xml.Name{namespace, "address-data"}
 )
 
 type addressbookHomeSet struct {
@@ -74,7 +76,7 @@ type addressDataResp struct {
 }
 
 type reportReq struct {
-	Query *addressbookQuery
+	Query    *addressbookQuery
 	Multiget *addressbookMultiget
 }
 
diff --git a/carddav/server.go b/carddav/server.go
index 6dd31c7..76665e7 100644
--- a/carddav/server.go
+++ b/carddav/server.go
@@ -209,8 +209,15 @@ func (b *backend) propfindAddressObject(propfind *internal.Propfind, ao *Address
 		internal.GetContentTypeName: func(*internal.RawXMLValue) (interface{}, error) {
 			return &internal.GetContentType{Type: vcard.MIMEType}, nil
 		},
+		addressBookDataName: func(*internal.RawXMLValue) (interface{}, error) {
+			var buf bytes.Buffer
+			if err := vcard.NewEncoder(&buf).Encode(ao.Card); err != nil {
+				return nil, err
+			}
+
+			return &addressDataResp{Data: buf.Bytes()}, nil
+		},
 		// TODO: getlastmodified, getetag
-		// TODO: address-data
 	}
 
 	return internal.NewPropfindResponse(ao.Href, propfind, props)