diff --git a/scripts/build-release-mac.sh b/scripts/build-release-mac.sh
index 1929edd6..f0b91570 100755
--- a/scripts/build-release-mac.sh
+++ b/scripts/build-release-mac.sh
@@ -26,13 +26,11 @@ done
 cp target/wheels/*.whl release/
 
 # swift
-cargo clean
 cd cozo-lib-swift
-./build-rust.sh
+CARGO_PROFILE_RELEASE_LTO=fat ./build-rust.sh
 cd ..
 
 # WASM
-cargo clean
 cd cozo-lib-wasm
 CARGO_PROFILE_RELEASE_LTO=fat ./build.sh
 cd ..