diff --git a/client.go b/client.go
index 05ebcda..c8758b6 100644
--- a/client.go
+++ b/client.go
@@ -393,6 +393,14 @@ func (cli *Client) SendMessageEvent(roomID string, eventType string, contentJSON
 	return
 }
 
+// SendStateEvent sends a state event into a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-state-eventtype-statekey
+// contentJSON should be a pointer to something that can be encoded as JSON using json.Marshal.
+func (cli *Client) SendStateEvent(roomID, eventType, stateKey string, contentJSON interface{}) (resp *RespSendEvent, err error) {
+	urlPath := cli.BuildURL("rooms", roomID, "state", eventType, stateKey)
+	_, err = cli.MakeRequest("PUT", urlPath, contentJSON, &resp)
+	return
+}
+
 // SendText sends an m.room.message event into the given room with a msgtype of m.text
 // See http://matrix.org/docs/spec/client_server/r0.2.0.html#m-text
 func (cli *Client) SendText(roomID, text string) (*RespSendEvent, error) {