diff --git a/pkgs/development/haskell-modules/configuration-ghc-6.12.x.nix b/pkgs/development/haskell-modules/configuration-ghc-6.12.x.nix
index 6d4e7a7bb256..322d7ea30937 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-6.12.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-6.12.x.nix
@@ -89,6 +89,7 @@ self: super: {
   split = super.split_0_1_4_3;
 
   # Needs hashable on pre 7.10.x compilers.
+  nats_1 = addBuildDepend super.nats_1 self.hashable;
   nats = addBuildDepend super.nats self.hashable;
 
   # Needs void on pre 7.10.x compilers.
diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.0.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.0.x.nix
index cc5d03f05f5b..6147be8f0f4b 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.0.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.0.x.nix
@@ -68,6 +68,7 @@ self: super: {
   doctest = dontHaddock super.doctest;
 
   # Needs hashable on pre 7.10.x compilers.
+  nats_1 = addBuildDepend super.nats_1 self.hashable;
   nats = addBuildDepend super.nats self.hashable;
 
   # Newer versions require bytestring >=0.10.
diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.2.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.2.x.nix
index 51962f161fc0..63aab9e45677 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.2.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.2.x.nix
@@ -69,6 +69,7 @@ self: super: {
   doctest = dontHaddock super.doctest;
 
   # Needs hashable on pre 7.10.x compilers.
+  nats_1 = addBuildDepend super.nats_1 self.hashable;
   nats = addBuildDepend super.nats self.hashable;
 
   # Newer versions require bytestring >=0.10.
diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.4.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.4.x.nix
index f1774c04a8fc..da7008b63f15 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.4.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.4.x.nix
@@ -74,6 +74,7 @@ self: super: {
   control-monad-free = super.control-monad-free_0_5_3;
 
   # Needs hashable on pre 7.10.x compilers.
+  nats_1 = addBuildDepend super.nats_1 self.hashable;
   nats = addBuildDepend super.nats self.hashable;
 
   # Test suite won't compile.
diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.6.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.6.x.nix
index f89ffc4c7c12..5c0d09127b9d 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.6.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.6.x.nix
@@ -77,6 +77,7 @@ self: super: {
   control-monad-free = super.control-monad-free_0_5_3;
 
   # Needs hashable on pre 7.10.x compilers.
+  nats_1 = addBuildDepend super.nats_1 self.hashable;
   nats = addBuildDepend super.nats self.hashable;
 
   # https://github.com/magthe/sandi/issues/7
diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.8.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.8.x.nix
index 81c060a4c3ec..81379ce9c371 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.8.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.8.x.nix
@@ -112,6 +112,7 @@ self: super: {
                                           self.webkitgtk3-javascriptcore ];
 
   # Needs hashable on pre 7.10.x compilers.
+  nats_1 = addBuildDepend super.nats_1 self.hashable;
   nats = addBuildDepend super.nats self.hashable;
 
   # needs mtl-compat to build with mtl 2.1.x