diff --git a/THANKS b/THANKS
index 7bdab621..c0ebaffa 100644
--- a/THANKS
+++ b/THANKS
@@ -14,6 +14,7 @@ Donald Stufft (@dstufft)
 Douglas Campos (@qmx)
 Eric Dong (@quantum1423)
 Eric Voskuil (@evoskuil)
+Frank Siebenlist (@franks42)
 Gabriel Handford (@gabriel)
 Jachym Holecek (@freza)
 Jan de Muijnck-Hughes (@jfdm)