diff --git a/AUTHORS b/AUTHORS
index 4a81a81..8d5582a 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -14,6 +14,7 @@ Hari haran <hariharan.uno@gmail.com>
 Jameel Haffejee <RC1140@republiccommandos.co.za>
 Justin Abrahms <justin@abrah.ms>
 Konrad Malawski <konrad.malawski@project13.pl>
+Krzysztof Kowalczyk <kkowalczyk@gmail.com>
 Ondrej Kupka <ondra.cap@gmail.com>
 Quinn Slack <qslack@qslack.com>
 Sander van Harmelen <svanharmelen@schubergphilis.com>
diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 9a331bb..f25d8de 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -25,6 +25,7 @@ Jameel Haffejee <RC1140@republiccommandos.co.za>
 Jason Hall <jasonhall@google.com>
 Justin Abrahms <justin@abrah.ms>
 Konrad Malawski <konrad.malawski@project13.pl>
+Krzysztof Kowalczyk <kkowalczyk@gmail.com>
 Ondrej Kupka <ondra.cap@gmail.com>
 Quinn Slack <qslack@qslack.com>
 Sander van Harmelen <svanharmelen@schubergphilis.com>