View source for In Section 13.3, the word "response" is duplicated

{{Errata
|Book edition=Second
|Version number=3.0h
|Submission date=11/22/2016
|Your name=Chanud Yasanayake
|E-mail address=cyasanay@caltech.edu
|Chapter number=13.3
|Page number=13-15
|Line number=10
|Current status=Closed
}}
It says "... tells us how the tracking response response varies...". One of the "response"s should be removed.