diff --git a/Simon-nofib-notes b/Simon-nofib-notes
index 952785960775e4bc3fce034d7a2b75ee03aca848..0cc74f5e5fa43cc16127ae2cd5f2084fb08ed95a 100644
--- a/Simon-nofib-notes
+++ b/Simon-nofib-notes
@@ -430,7 +430,7 @@ Same issue with GHC.IO.Encoding.UTF8 as treejoin
 
 cacheprof
 ~~~~~~~~~
-Sucessive runs with the same data can yield different allocation
+Successive runs with the same data can yield different allocation
 totals, for some reason.
 Reported at https://ghc.haskell.org/trac/ghc/ticket/8611