diff --git a/setup.py b/setup.py
index 6d7961233..cc3f69bf8 100644
--- a/setup.py
+++ b/setup.py
@@ -50,6 +50,7 @@ def build_extension(self, ext: CMakeExtension) -> None:
         # from Python.
         cmake_args = [
             f"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY={extdir}{os.sep}",
+            f"-DCMAKE_ARCHIVE_OUTPUT_DIRECTORY={extdir}{os.sep}",
             f"-DPYTHON_EXECUTABLE={sys.executable}",
             f"-DCMAKE_BUILD_TYPE={cfg}",  # not used on MSVC, but no harm
             f"-DMANIFOLD_PAR=TBB"