diff --git a/AUTHORS b/AUTHORS
index a54d1e2..92f8800 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -25,6 +25,7 @@ Dmitri Shuralyov <shurcooL@gmail.com>
 dmnlk <seikima2demon@gmail.com>
 Doug Turner <doug.turner@gmail.com>
 erwinvaneyk <erwinvaneyk@gmail.com>
+Filippo Valsorda <hi@filippo.io>
 Francis <hello@francismakes.com>
 Fredrik Jönsson <fredrik.jonsson@izettle.com>
 Google Inc.
diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 93d7208..022f174 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -40,6 +40,7 @@ dmnlk <seikima2demon@gmail.com>
 Doug Turner <doug.turner@gmail.com>
 Eric Paris <eparis@redhat.com>
 erwinvaneyk <erwinvaneyk@gmail.com>
+Filippo Valsorda <hi@filippo.io>
 Francis <hello@francismakes.com>
 Fredrik Jönsson <fredrik.jonsson@izettle.com>
 griffin_stewie <panterathefamilyguy@gmail.com>