diff --git a/Misc/ACKS b/Misc/ACKS
index 4de44cc..5779332 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1130,6 +1130,7 @@
 Artur Zaprzala
 Mike Zarnstorff
 Siebren van der Zee
+Nickolai Zeldovich
 Uwe Zessin
 Cheng Zhang
 Tarek Ziadé