diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index a6fb14699b0c6..0302ca2e54cec 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -23,6 +23,12 @@ self: super: {
   # There are numerical tests on random data, that may fail occasionally
   lapack = dontCheck super.lapack;
 
+  # fix tests failure for base≥4.15 (https://github.com/kim/leveldb-haskell/pull/41)
+  leveldb-haskell = appendPatch (fetchpatch {
+    url = "https://github.com/kim/leveldb-haskell/commit/f5249081f589233890ddb1945ec548ca9fb717cf.patch";
+    sha256 = "14gllipl28lqry73c5dnclsskzk1bsrrgazibl4lkl8z98j2csjb";
+  }) super.leveldb-haskell;
+
   # Arion's test suite needs a Nixpkgs, which is cumbersome to do from Nixpkgs
   # itself. For instance, pkgs.path has dirty sources and puts a huge .git in the
   # store. Testing is done upstream.
diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml
index 28a6e8f3e5ddb..4f3e29069f3e4 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml
@@ -2917,7 +2917,6 @@ broken-packages:
   - lens-xml
   - less-arbitrary
   - Level0
-  - leveldb-haskell
   - level-monad
   - levenshtein
   - levmar
diff --git a/pkgs/development/haskell-modules/hackage-packages.nix b/pkgs/development/haskell-modules/hackage-packages.nix
index 927553f0baa27..07e1bcbbc38fb 100644
--- a/pkgs/development/haskell-modules/hackage-packages.nix
+++ b/pkgs/development/haskell-modules/hackage-packages.nix
@@ -50673,6 +50673,7 @@ self: {
        libraryHaskellDepends = [ base Cabal lens process ];
        description = "Make Cabal aware of pkg-config package versions";
        license = lib.licenses.bsd3;
+       maintainers = with lib.maintainers; [ roberth ];
      }) {};
 
   "cabal-plan" = callPackage
@@ -168218,8 +168219,6 @@ self: {
        ];
        description = "Haskell bindings to LevelDB";
        license = lib.licenses.bsd3;
-       hydraPlatforms = lib.platforms.none;
-       broken = true;
      }) {inherit (pkgs) leveldb;};
 
   "leveldb-haskell-fork" = callPackage