diff --git a/Makefile b/Makefile
index d901402..fb57d15 100644
--- a/Makefile
+++ b/Makefile
@@ -34,7 +34,7 @@ clean:
 
 .PHONY: c_lib
 c_lib:
-	$(CXX) -c "ada_url/ada.cpp" -fPIC -std="c++17" -O2 -o "ada_url/ada.o"
+	$(CXX) -c "ada_url/ada.cpp" -fPIC -std="c++17" -O2 -o "ada_url/ada.o" $(ARCHFLAGS)
 
 .PHONY: package
 package: c_lib
diff --git a/pyproject.toml b/pyproject.toml
index 2cde92d..03a9572 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,11 +25,12 @@ build = [
     "pp38-*",
     "pp39-*",
 ]
-before-all = "make c_lib"
 
 [tool.cibuildwheel.linux]
 archs = ["x86_64", "aarch64"]
+before-all = "make c_lib"
 
 [tool.cibuildwheel.macos]
 archs = ["x86_64", "universal2", "arm64"]
 environment = { MACOSX_DEPLOYMENT_TARGET="10.15" }
+before-build = "make clean && make c_lib"