diff --git a/.gitignore b/.gitignore
index 36eab2f4f..bd884dc8e 100755
--- a/.gitignore
+++ b/.gitignore
@@ -60,7 +60,7 @@ zt1-src.tar.gz
 *.pid
 *.pkg
 *.o
-*.a
+/*.a
 *.dylib
 *.so
 *.so.*
diff --git a/ext/bin/cnacl-osx-amd64/libnacl.a b/ext/bin/cnacl-osx-amd64/libnacl.a
new file mode 100644
index 000000000..d8bcc674c
Binary files /dev/null and b/ext/bin/cnacl-osx-amd64/libnacl.a differ