diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
index e3a00fc09b12..b6049884138c 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
@@ -310,6 +310,7 @@ package-maintainers:
     - streamly
     - streamly-bytestring
     - taskwarrior
+    - threadscope
     - tz
     - weeder
     - witch
diff --git a/pkgs/development/haskell-modules/hackage-packages.nix b/pkgs/development/haskell-modules/hackage-packages.nix
index 4ddc9a67d8b6..19ff3c2e236a 100644
--- a/pkgs/development/haskell-modules/hackage-packages.nix
+++ b/pkgs/development/haskell-modules/hackage-packages.nix
@@ -293602,6 +293602,7 @@ self: {
        description = "A graphical tool for profiling parallel Haskell programs";
        license = lib.licenses.bsd3;
        mainProgram = "threadscope";
+       maintainers = [ lib.maintainers.maralorn ];
      }) {};
 
   "threefish" = callPackage