diff --git a/client.go b/client.go
index 8ff3247..b07ee20 100644
--- a/client.go
+++ b/client.go
@@ -515,7 +515,7 @@ func (cli *Client) ForgetRoom(roomID string) (resp *RespForgetRoom, err error) {
 // InviteUser invites a user to a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-invite
 func (cli *Client) InviteUser(roomID string, req *ReqInviteUser) (resp *RespInviteUser, err error) {
 	u := cli.BuildURL("rooms", roomID, "invite")
-	_, err = cli.MakeRequest("POST", u, struct{}{}, &resp)
+	_, err = cli.MakeRequest("POST", u, req, &resp)
 	return
 }