diff --git a/README b/README
index 70555f9..3427894 100644
--- a/README
+++ b/README
@@ -22,10 +22,10 @@ Clements.
 We are also grateful for the bug reports and patches contributed by Silas
 Boyd-Wickizer, Cody Cutler, Mike CAT, Nelson Elhage, Nathaniel Filardo, Peter
 Froehlich, Yakir Goaron, Shivam Handa, Bryan Henry, Jim Huang, Anders Kaseorg,
-kehao95, Eddie Kohler, Imbar Marinescu, Yandong Mao, Hitoshi Mitake, Carmi
-Merimovich, Joel Nider, Greg Price, Ayan Shafqat, Eldar Sehayek, Yongming Shen,
-Cam Tenny, Rafael Ubal, Warren Toomey, Stephen Tu, Pablo Ventura, Xi Wang,
-Keiichi Watanabe, Nicolas Wolovick, Jindong Zhang, and Zou Chang Wei.
+kehao95, Wolfgang Keller, Eddie Kohler, Imbar Marinescu, Yandong Mao, Hitoshi
+Mitake, Carmi Merimovich, Joel Nider, Greg Price, Ayan Shafqat, Eldar Sehayek,
+Yongming Shen, Cam Tenny, Rafael Ubal, Warren Toomey, Stephen Tu, Pablo Ventura,
+Xi Wang, Keiichi Watanabe, Nicolas Wolovick, Jindong Zhang, and Zou Chang Wei.
 
 The code in the files that constitute xv6 is
 Copyright 2006-2016 Frans Kaashoek, Robert Morris, and Russ Cox.