diff --git a/build_rust.py b/build_rust.py
index 662474dcb4..31ef841d8f 100644
--- a/build_rust.py
+++ b/build_rust.py
@@ -14,7 +14,6 @@ def build(setup_kwargs: Dict[str, Any]) -> None:
         target="synapse.synapse_rust",
         path=cargo_toml_path,
         binding=Binding.PyO3,
-        py_limited_api=True,
         # We force always building in release mode, as we can't tell the
         # difference between using `poetry` in development vs production.
         debug=False,