diff --git a/README b/README
index 1528948..4f447d4 100644
--- a/README
+++ b/README
@@ -25,7 +25,7 @@ The following people have made contributions:
 In addition, we are grateful for the bug reports and patches contributed by
 Silas Boyd-Wickizer, Peter Froehlich, Shivam Handa, Anders Kaseorg, Eddie
 Kohler, Yandong Mao, Hitoshi Mitake, Carmi Merimovich, Joel Nider, Greg Price,
-Eldar Sehayek, Yongming Shen, Stephen Tu, and Zouchangwei.
+Eldar Sehayek, Yongming Shen, Warren Toomey, Stephen Tu, and Zouchangwei.
 
 The code in the files that constitute xv6 is
 Copyright 2006-2014 Frans Kaashoek, Robert Morris, and Russ Cox.