diff --git a/pkgs/top-level/release-haskell.nix b/pkgs/top-level/release-haskell.nix
index 636f0f2b15ec..5173ec6cb361 100644
--- a/pkgs/top-level/release-haskell.nix
+++ b/pkgs/top-level/release-haskell.nix
@@ -258,8 +258,14 @@ let
       pkgsMusl.haskellPackages =
         removePlatforms
           [
-            "aarch64-linux" # aarch64 does not appear to be supported
-            "x86_64-darwin" # musl only supports linux
+            # pkgsMusl is compiled natively with musl.  It is not
+            # cross-compiled (unlike pkgsStatic).  We can only
+            # natively bootstrap GHC with musl on x86_64-linux because
+            # upstream doesn't provide a musl bindist for aarch64.
+            "aarch64-linux"
+
+            # musl only supports linux, not darwin.
+            "x86_64-darwin"
           ]
           {
             inherit (packagePlatforms pkgs.pkgsMusl.haskellPackages)