pybench prep_times calculation error (closes #11895)
diff --git a/Misc/ACKS b/Misc/ACKS
index 6a4fdd5..7842fa2 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -794,6 +794,7 @@
 Steven Taschuk
 Monty Taylor
 Amy Taylor
+Mikhail Terekhov
 Tobias Thelen
 James Thomas
 Robin Thomas