Closes #17725: small grammar fix.
diff --git a/Misc/ACKS b/Misc/ACKS
index cbef1f0..769624c 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -959,6 +959,7 @@
 Kirill Simonov
 Nathan Paul Simons
 Guilherme Simões
+Kyle Simpson
 Ravi Sinha
 Janne Sinkkonen
 Ng Pheng Siong