diff --git a/AUTHORS b/AUTHORS
index 6114139..aa6fe36 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -15,6 +15,7 @@ Cristian Maglie <c.maglie@bug.st>
 Daniel Leavitt <daniel.leavitt@gmail.com>
 Diego Lapiduz <diego.lapiduz@cfpb.gov>
 Dmitri Shuralyov <shurcooL@gmail.com>
+Fredrik Jönsson <fredrik.jonsson@izettle.com>
 Google Inc.
 Guz Alexander <kalimatas@gmail.com>
 Hari haran <hariharan.uno@gmail.com>
diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 601e785..48e1a74 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -26,6 +26,7 @@ Cristian Maglie <c.maglie@bug.st>
 Daniel Leavitt <daniel.leavitt@gmail.com>
 Diego Lapiduz <diego.lapiduz@cfpb.gov>
 Dmitri Shuralyov <shurcooL@gmail.com>
+Fredrik Jönsson <fredrik.jonsson@izettle.com>
 Guz Alexander <kalimatas@gmail.com>
 Hari haran <hariharan.uno@gmail.com>
 Jameel Haffejee <RC1140@republiccommandos.co.za>