diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 0fd1a03f316..20a908858e9 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -1075,14 +1075,3 @@ self: super: {
 in {
   inherit amazonka amazonka-core amazonka-test;
 })
-
-//
-
-# The actual Cabal library gets built while building its `Setup.hs`.
-(let
-  inherit (pkgs.lib) filterAttrs flip mapAttrs hasPrefix;
-  cabals = filterAttrs (n: v: hasPrefix "Cabal_" n) super;
-  fixCabal = n: v: addSetupDepends v [ self.mtl self.parsec ];
-in
-  mapAttrs fixCabal cabals
-)