diff --git a/msg_chat_markers.go b/msg_chat_markers.go
index c03e7e4..4c12a3e 100644
--- a/msg_chat_markers.go
+++ b/msg_chat_markers.go
@@ -17,19 +17,19 @@ type Markable struct {
 type MarkReceived struct {
 	MsgExtension
 	XMLName xml.Name `xml:"urn:xmpp:chat-markers:0 received"`
-	ID      string
+	ID      string   `xml:"id,attr"`
 }
 
 type MarkDisplayed struct {
 	MsgExtension
 	XMLName xml.Name `xml:"urn:xmpp:chat-markers:0 displayed"`
-	ID      string
+	ID      string   `xml:"id,attr"`
 }
 
 type MarkAcknowledged struct {
 	MsgExtension
 	XMLName xml.Name `xml:"urn:xmpp:chat-markers:0 acknowledged"`
-	ID      string
+	ID      string   `xml:"id,attr"`
 }
 
 func init() {
diff --git a/msg_receipts.go b/msg_receipts.go
index 23d763a..4edc411 100644
--- a/msg_receipts.go
+++ b/msg_receipts.go
@@ -18,7 +18,7 @@ type ReceiptRequest struct {
 type ReceiptReceived struct {
 	MsgExtension
 	XMLName xml.Name `xml:"urn:xmpp:receipts received"`
-	ID      string
+	ID      string   `xml:"id,attr"`
 }
 
 func init() {