diff --git a/AUTHORS.md b/AUTHORS.md
index 25aa969a4..4c356e70e 100644
--- a/AUTHORS.md
+++ b/AUTHORS.md
@@ -77,3 +77,4 @@ Mapnik is written by Artem Pavlenko with contributions from:
 * Rich Wareham
 * Nick Whitelegg
 * Leslie Wu
+* Blake Thompson