diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 2934a512886..f94d2397284 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -921,9 +921,6 @@ self: super: {
     librarySystemDepends = (drv.librarySystemDepends or []) ++ [ pkgs.ncurses ];
   });
 
-  # https://github.com/fpco/stackage/issues/1004
-  gtk2hs-buildtools = super.gtk2hs-buildtools.override { alex = self.alex_3_1_4; };
-
   # https://github.com/Gabriel439/Haskell-Morte-Library/issues/32
   morte = super.morte.override { alex = self.alex_3_1_4; };