diff --git a/THANKS b/THANKS
index 56e18dc8..e020e8cf 100644
--- a/THANKS
+++ b/THANKS
@@ -6,6 +6,7 @@ Some people have helped more, some less, some don't even know they have
 been helpful, but nevertheless everyone's help has been important. :-)
 In alphabetical order:
   - Mark Adler
+  - Nelson H. F. Beebe
   - Anders F. Björklund
   - İsmail Dönmez
   - Jean-loup Gailly