diff --git a/tools/commands.js b/tools/commands.js
index da3fbbba07..3edbaced44 100644
--- a/tools/commands.js
+++ b/tools/commands.js
@@ -36,7 +36,6 @@ var VALID_ARCHITECTURES = {
   "os.osx.x86_64": true,
   "os.linux.x86_64": true,
   "os.linux.x86_32": true,
-  "os.windows.x86_64": true,
   "os.windows.x86_32": true
 };