diff --git a/ion.bzl b/ion.bzl
index 15ad01e..900d7de 100644
--- a/ion.bzl
+++ b/ion.bzl
@@ -18,6 +18,10 @@ def select_build_output_files_for_ion_bazel_platform(
         "linux_opt_x86": ["gyp-out/linux/opt/lib" + lib + ".a" for lib in files],
         "linux_dbg_x64": ["gyp-out/linux/dbg/lib" + lib + ".a" for lib in files],
         "linux_opt_x64": ["gyp-out/linux/opt/lib" + lib + ".a" for lib in files],
+        "mac_dbg_x86": ["gyp-out/mac-ninja/dbg/" + lib + ".a" for lib in files],
+        "mac_opt_x86": ["gyp-out/mac-ninja/opt/" + lib + ".a" for lib in files],
+        "mac_dbg_x64": ["gyp-out/mac-ninja/dbg/" + lib + ".a" for lib in files],
+        "mac_opt_x64": ["gyp-out/mac-ninja/opt/" + lib + ".a" for lib in files],
         "windows_dbg_x86": ["gyp-out/win-ninja/dbg_x86/" + lib + ".lib" for lib in files],
         "windows_opt_x86": ["gyp-out/win-ninja/opt_x86/" + lib + ".lib" for lib in files],
         "windows_dbg_x64": ["gyp-out/win-ninja/dbg_x64/" + lib + ".lib" for lib in files],