diff --git a/AUTHORS b/AUTHORS
index ab89d0e1..8dabc680 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -9,6 +9,8 @@ The (scheme time) module includes code for handling leap seconds
 from Alan Watson's Scheme clock library at
 http://code.google.com/p/scheme-clock/ under the same license.
 
+The image handling code in gc_heap.c was written by Chris Walsh.
+
 The benchmarks are based on the Racket versions of the classic
 Gabriel benchmarks from
 http://www.cs.utah.edu/~mflatt/benchmarks-20100126/log3/index.html.