diff --git a/CONTRIBUTORS.txt b/CONTRIBUTORS.txt
index ecbbbd90..9c0daec2 100644
--- a/CONTRIBUTORS.txt
+++ b/CONTRIBUTORS.txt
@@ -25,3 +25,6 @@
 - Tony Yu
   Reading of paletted images
 
+- Zachary Pincus
+  Tracing of low cost paths
+