diff --git a/antlir/bzl/build_defs.bzl b/antlir/bzl/build_defs.bzl
index 80ef8b32340..8eed8ec1769 100644
--- a/antlir/bzl/build_defs.bzl
+++ b/antlir/bzl/build_defs.bzl
@@ -162,6 +162,7 @@ _PYTHON_UNITTEST_KWARGS = _make_rule_kwargs_dict(
         "needed_coverage",
         "package_style",
         "par_style",
+        "target_compatible_with",
         "resources",
         "runtime_deps",
         "srcs",