diff --git a/alea.cabal b/alea.cabal
index 3f95057..8c64b1e 100644
--- a/alea.cabal
+++ b/alea.cabal
@@ -26,4 +26,4 @@ executable alea
   other-extensions:    DeriveDataTypeable, RecordWildCards
   build-depends:       base ==4.7.* , containers ==0.5.*,
                        cmdargs ==0.10.*, random ==1.1.*
-  --ghc-options:         -dynamic
+  ghc-options:         -O2 -dynamic