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-rw-r--r--pkgs/top-level/haskell-packages.nix4
1 files changed, 3 insertions, 1 deletions
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 933e7a29c5bd..22ed02954942 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1532,7 +1532,9 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   leksahServer = callPackage ../development/libraries/haskell/leksah/leksah-server.nix {};
 
-  lens = callPackage ../development/libraries/haskell/lens {};
+  lens_3_10_2 = callPackage ../development/libraries/haskell/lens/3.10.2.nix {};
+  lens_4_0 = callPackage ../development/libraries/haskell/lens/4.0.nix {};
+  lens = self.lens_3_10_2;
 
   lensAeson = callPackage ../development/libraries/haskell/lens-aeson {};