Index: b/path.cabal
===================================================================
--- a/path.cabal
+++ b/path.cabal
@@ -89,7 +89,7 @@ test-suite validity-test
                    , path
                    , validity   >= 0.8.0.0
   default-language:  Haskell2010
-  ghc-options: -threaded -rtsopts -with-rtsopts=-N
+  ghc-options: -threaded -rtsopts
 
 source-repository head
   type:              git
