diff --git a/pkgs/development/libraries/haskell/Extra/default.nix b/pkgs/development/libraries/haskell/Extra-lib/default.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/Extra/default.nix
rename to pkgs/development/libraries/haskell/Extra-lib/default.nix
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index bd3b914ff26..576f4332251 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -790,7 +790,7 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   executablePath = callPackage ../development/libraries/haskell/executable-path {};
 
-  Extra = callPackage ../development/libraries/haskell/Extra {};
+  Extra = callPackage ../development/libraries/haskell/Extra-lib {};
 
   fay = callPackage ../development/libraries/haskell/fay {};