Index: b/ghc-lib-parser-ex.cabal
===================================================================
--- a/ghc-lib-parser-ex.cabal
+++ b/ghc-lib-parser-ex.cabal
@@ -101,7 +101,7 @@ common test
 test-suite ghc-lib-parser-ex-test
   import: test
   type: exitcode-stdio-1.0
-  ghc-options: -threaded -rtsopts -with-rtsopts=-N
+  ghc-options: -threaded
   main-is: Test.hs
   hs-source-dirs: test
 
