diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 559c1b73e86..ddf64847d40 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2221,7 +2221,6 @@ let
   haskellPackages_ghc721              =                   haskell.packages_ghc721;
   haskellPackages_ghc722              =                   haskell.packages_ghc722;
   haskellPackages_ghc741              = recurseIntoAttrs (haskell.packages_ghc741);
-  haskellPackages_ghc741_pedantic     =                   haskell.packages_ghc741_pedantic;
   # Stable branch snapshot.
   haskellPackages_ghc742              = recurseIntoAttrs (haskell.packages_ghc742);
   # Reasonably current HEAD snapshot.
diff --git a/pkgs/top-level/haskell-defaults.nix b/pkgs/top-level/haskell-defaults.nix
index 42f0980c637..96744b4ee30 100644
--- a/pkgs/top-level/haskell-defaults.nix
+++ b/pkgs/top-level/haskell-defaults.nix
@@ -17,17 +17,13 @@
 
   ghcHEADPrefs = ghc741Prefs;
 
-  ghc741Prefs_pedantic =
+  ghc741Prefs =
     self : self.haskellPlatformArgs_future self // {
       haskellPlatform = self.haskellPlatform_2012_2_0_0;
       mtl1 = self.mtl_1_1_1_1; # 7.2 ok, 7.3 ok
       binary = null; # now a core package
     };
 
-  ghc741Prefs =
-    self : ghc741Prefs_pedantic self // {
-    };
-
   ghc722Prefs = ghc741Prefs;
 
   ghc721Prefs = ghc741Prefs;
@@ -245,10 +241,6 @@
                prefFun = ghc741Prefs;
              };
 
-  # More strictly adhering to the probable future Haskell Platform.
-  packages_ghc741_pedantic =
-    packages_ghc741.override { prefFun = ghc741Prefs_pedantic; };
-
   # Stable branch snapshot.
   packages_ghc742 =
     packages { ghcPath = ../development/compilers/ghc/7.4.2.nix;