diff --git a/client.go b/client.go
index c8758b6..a1fb38d 100644
--- a/client.go
+++ b/client.go
@@ -387,7 +387,7 @@ func (cli *Client) SetDisplayName(displayName string) (err error) {
 // SendMessageEvent sends a message event into a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-send-eventtype-txnid
 // contentJSON should be a pointer to something that can be encoded as JSON using json.Marshal.
 func (cli *Client) SendMessageEvent(roomID string, eventType string, contentJSON interface{}) (resp *RespSendEvent, err error) {
-	txnID := "go" + strconv.FormatInt(time.Now().UnixNano(), 10)
+	txnID := txnID()
 	urlPath := cli.BuildURL("rooms", roomID, "send", eventType, txnID)
 	_, err = cli.MakeRequest("PUT", urlPath, contentJSON, &resp)
 	return
@@ -408,6 +408,14 @@ func (cli *Client) SendText(roomID, text string) (*RespSendEvent, error) {
 		TextMessage{"m.text", text})
 }
 
+// RedactEvent redacts the given event. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-redact-eventid-txnid
+func (cli *Client) RedactEvent(roomID, eventID string, req *ReqRedact) (resp *RespSendEvent, err error) {
+	txnID := txnID()
+	urlPath := cli.BuildURL("rooms", roomID, "redact", eventID, txnID)
+	_, err = cli.MakeRequest("PUT", urlPath, req, &resp)
+	return
+}
+
 // CreateRoom creates a new Matrix room. See https://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-createroom
 //  resp, err := cli.CreateRoom(&gomatrix.ReqCreateRoom{
 //  	Preset: "public_chat",
@@ -518,6 +526,10 @@ func (cli *Client) UploadToContentRepo(content io.Reader, contentType string, co
 	return &m, nil
 }
 
+func txnID() string {
+	return "go" + strconv.FormatInt(time.Now().UnixNano(), 10)
+}
+
 // NewClient creates a new Matrix Client ready for syncing
 func NewClient(homeserverURL, userID, accessToken string) (*Client, error) {
 	hsURL, err := url.Parse(homeserverURL)
diff --git a/requests.go b/requests.go
index 7a9d4ac..c1ba27b 100644
--- a/requests.go
+++ b/requests.go
@@ -36,6 +36,11 @@ type ReqCreateRoom struct {
 	IsDirect        bool                   `json:"is_direct,omitempty"`
 }
 
+// ReqRedact is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-redact-eventid-txnid
+type ReqRedact struct {
+	Reason string `json:"reason,omitempty"`
+}
+
 // ReqInvite3PID is the JSON request for https://matrix.org/docs/spec/client_server/r0.2.0.html#id57
 // It is also a JSON object used in https://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-createroom
 type ReqInvite3PID struct {