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-rw-r--r--pkgs/development/haskell-modules/configuration-ghc-7.2.x.nix1
1 files changed, 1 insertions, 0 deletions
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.