diff --git a/timer-wheel.cabal b/timer-wheel.cabal
index e17124f..c27ffeb 100644
--- a/timer-wheel.cabal
+++ b/timer-wheel.cabal
@@ -103,7 +103,7 @@ benchmark bench
     random ^>= 1.2,
     tasty-bench,
     timer-wheel,
-  ghc-options: -fproc-alignment=64 -O -threaded "-with-rtsopts=-N2 -T -A32m"
+  ghc-options: -fproc-alignment=64 -threaded "-with-rtsopts=-N2 -T -A32m"
   hs-source-dirs: bench
   main-is: Main.hs
   type: exitcode-stdio-1.0