diff --git a/pkgs/development/python-modules/capstone/default.nix b/pkgs/development/python-modules/capstone/default.nix
index c99c392841e..f1a37fb70a0 100644
--- a/pkgs/development/python-modules/capstone/default.nix
+++ b/pkgs/development/python-modules/capstone/default.nix
@@ -18,6 +18,10 @@ buildPythonPackage rec {
     substituteInPlace setup.py --replace manylinux1 manylinux2014
   '';
 
+  # aarch64 only available from MacOS SDK 11 onwards, so fix the version tag.
+  # otherwise, bdist_wheel may detect "macosx_10_6_arm64" which doesn't make sense.
+  setupPyBuildFlags = lib.optionals (stdenv.isDarwin && stdenv.isAarch64) [ "--plat-name" "macosx_11_0" ];
+
   propagatedBuildInputs = [ setuptools ];
 
   checkPhase = ''