diff --git a/pkgs/development/python-modules/angr/default.nix b/pkgs/development/python-modules/angr/default.nix
index d6fb43d07050..4468dfabecd0 100644
--- a/pkgs/development/python-modules/angr/default.nix
+++ b/pkgs/development/python-modules/angr/default.nix
@@ -1,4 +1,5 @@
 { lib
+, stdenv
 , ailment
 , archinfo
 , buildPythonPackage
@@ -54,6 +55,8 @@ buildPythonPackage rec {
     sha256 = "sha256-AZlqSalTOQh3QR959ZuanFuTZVKi9valKJ3snsquC/A=";
   };
 
+  setupPyBuildFlags = lib.optionals stdenv.isLinux [ "--plat-name" "linux" ];
+
   propagatedBuildInputs = [
     ailment
     archinfo
diff --git a/pkgs/development/python-modules/keystone-engine/default.nix b/pkgs/development/python-modules/keystone-engine/default.nix
index ed9f3a6bb702..7c3cf2e70d83 100644
--- a/pkgs/development/python-modules/keystone-engine/default.nix
+++ b/pkgs/development/python-modules/keystone-engine/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchPypi, keystone }:
+{ lib, stdenv, buildPythonPackage, fetchPypi, keystone }:
 
 buildPythonPackage rec {
   pname = "keystone-engine";
@@ -9,6 +9,8 @@ buildPythonPackage rec {
    sha256 = "1xahdr6bh3dw5swrc2r8kqa8ljhqlb7k2kxv5mrw5rhcmcnzcyig";
   };
 
+  setupPyBuildFlags = lib.optionals stdenv.isLinux [ "--plat-name" "linux" ];
+
   preConfigure = ''
     substituteInPlace setup.py --replace \
       "libkeystone" "${keystone}/lib/libkeystone"