diff --git a/Misc/ACKS b/Misc/ACKS
index 9ac162f..4a2c06e 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -829,6 +829,7 @@
 Paul Sokolovsky
 Cody Somerville
 Clay Spence
+Stefan Sperling
 Per Spilling
 Joshua Spoerri
 Noah Spurrier