diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
index 621ac110ad41..315a33baa034 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
@@ -577,6 +577,7 @@ supported-platforms:
   scat:                                         [ platforms.x86 ] # uses scrypt, which requries x86
   scrypt:                                       [ platforms.x86 ] # https://github.com/informatikr/scrypt/issues/8
   seqalign:                                     [ platforms.x86 ] # x86 intrinsics
+  swisstable:                                   [ platforms.x86_64 ] # Needs AVX2
   tasty-papi:                                   [ platforms.linux ] # limited by pkgs.papi
   udev:                                         [ platforms.linux ]
   Win32-console:                                [ platforms.windows ]
diff --git a/pkgs/development/haskell-modules/hackage-packages.nix b/pkgs/development/haskell-modules/hackage-packages.nix
index 63f1c1519f3b..cbcc94c5b918 100644
--- a/pkgs/development/haskell-modules/hackage-packages.nix
+++ b/pkgs/development/haskell-modules/hackage-packages.nix
@@ -278262,6 +278262,7 @@ self: {
        ];
        description = "SwissTable hash map";
        license = lib.licenses.bsd3;
+       platforms = lib.platforms.x86_64;
      }) {};
 
   "switch" = callPackage