diff --git a/pkgs/development/haskell-modules/generic-builder.nix b/pkgs/development/haskell-modules/generic-builder.nix
index fb8781bd7504..b871b7d73faa 100644
--- a/pkgs/development/haskell-modules/generic-builder.nix
+++ b/pkgs/development/haskell-modules/generic-builder.nix
@@ -45,7 +45,6 @@
 , checkPhase ? "", preCheck ? "", postCheck ? ""
 , preFixup ? "", postFixup ? ""
 , shellHook ? ""
-, hardening_fortify ? true
 , coreSetup ? false # Use only core packages to build Setup.hs.
 , useCpphs ? false
 } @ args:
@@ -320,6 +319,5 @@ stdenv.mkDerivation ({
 // optionalAttrs (preFixup != "")       { inherit preFixup; }
 // optionalAttrs (postFixup != "")      { inherit postFixup; }
 // optionalAttrs (dontStrip)            { inherit dontStrip; }
-// optionalAttrs (!hardening_fortify)   { inherit hardening_fortify; }
 // optionalAttrs (stdenv.isLinux)       { LOCALE_ARCHIVE = "${glibcLocales}/lib/locale/locale-archive"; }
 )