diff --git a/pkgs/top-level/haskell-defaults.nix b/pkgs/top-level/haskell-defaults.nix
index 803b45061bd..4b2f5fc4613 100644
--- a/pkgs/top-level/haskell-defaults.nix
+++ b/pkgs/top-level/haskell-defaults.nix
@@ -41,7 +41,6 @@
   ghc704Prefs =
     self : self.haskellPlatformArgs_2011_4_0_0 self // {
       haskellPlatform = self.haskellPlatform_2011_4_0_0;
-      repaExamples = null;      # don't pick this version of 'repa-examples' during nix-env -u
       cabalInstall_0_14_0 = self.cabalInstall_0_14_0.override { Cabal = self.Cabal_1_14_0; };
       monadPar = self.monadPar_0_1_0_3;
       jailbreakCabal = self.jailbreakCabal.override { Cabal = self.Cabal_1_14_0; };
@@ -50,7 +49,6 @@
   ghc703Prefs =
     self : self.haskellPlatformArgs_2011_2_0_1 self // {
       haskellPlatform = self.haskellPlatform_2011_2_0_1;
-      repaExamples = null;      # don't pick this version of 'repa-examples' during nix-env -u
       cabalInstall_0_14_0 = self.cabalInstall_0_14_0.override { Cabal = self.Cabal_1_14_0; zlib = self.zlib_0_5_3_3; };
       monadPar = self.monadPar_0_1_0_3;
       jailbreakCabal = self.jailbreakCabal.override { Cabal = self.Cabal_1_14_0; };
@@ -61,7 +59,6 @@
   ghc701Prefs =
     self : self.haskellPlatformArgs_2011_2_0_0 self // {
       haskellPlatform = self.haskellPlatform_2011_2_0_0;
-      repaExamples = null;      # don't pick this version of 'repa-examples' during nix-env -u
       cabalInstall_0_14_0 = self.cabalInstall_0_14_0.override { Cabal = self.Cabal_1_14_0; zlib = self.zlib_0_5_3_3; };
       monadPar = self.monadPar_0_1_0_3;
       jailbreakCabal = self.jailbreakCabal.override { Cabal = self.Cabal_1_14_0; };
@@ -73,7 +70,6 @@
     self : self.haskellPlatformArgs_2010_2_0_0 self // {
       haskellPlatform = self.haskellPlatform_2010_2_0_0;
       mtl1 = self.mtl_1_1_0_2;
-      repaExamples = null;      # don't pick this version of 'repa-examples' during nix-env -u
       cabalInstall_0_14_0 = self.cabalInstall_0_14_0.override { Cabal = self.Cabal_1_14_0; zlib = self.zlib_0_5_3_3; };
       monadPar = self.monadPar_0_1_0_3;
       deepseq = self.deepseq_1_1_0_2;
@@ -86,7 +82,6 @@
       haskellPlatform = self.haskellPlatform_2010_1_0_0;
       mtl1 = self.mtl_1_1_0_2;
       extensibleExceptions = self.extensibleExceptions_0_1_1_0;
-      repaExamples = null;      # don't pick this version of 'repa-examples' during nix-env -u
       deepseq = self.deepseq_1_1_0_2;
       monadPar = self.monadPar_0_1_0_3;
       jailbreakCabal = self.jailbreakCabal.override { Cabal = self.Cabal_1_14_0; };
@@ -100,7 +95,6 @@
       mtl1 = self.mtl_1_1_0_2;
       extensibleExceptions = self.extensibleExceptions_0_1_1_0;
       text = self.text_0_11_0_6;
-      repaExamples = null;      # don't pick this version of 'repa-examples' during nix-env -u
       cabalInstall_0_14_0 = self.cabalInstall_0_14_0.override { Cabal = self.Cabal_1_14_0; zlib = self.zlib_0_5_3_3; };
       deepseq = self.deepseq_1_1_0_2;
       monadPar = self.monadPar_0_1_0_3;