diff --git a/pkgs/development/python-modules/blis/default.nix b/pkgs/development/python-modules/blis/default.nix
index a6ea7b690e8e..8174ef240d01 100644
--- a/pkgs/development/python-modules/blis/default.nix
+++ b/pkgs/development/python-modules/blis/default.nix
@@ -34,6 +34,7 @@ buildPythonPackage rec {
     description = "BLAS-like linear algebra library";
     homepage = "https://github.com/explosion/cython-blis";
     license = licenses.bsd3;
+    platforms = platforms.x86_64;
     maintainers = with maintainers; [ danieldk ];
   };
 }