diff --git a/README.md b/README.md
index 35cc372..805319e 100644
--- a/README.md
+++ b/README.md
@@ -58,6 +58,6 @@ electron-packager . --platform=darwin --arch=x64 --icon=assets/icons/iguana_app_
 Change directory to iguana and execute the following command to build the Windows app
 ```shell
 dir iguana
-electron-packager . --platform=win32 --arch=win32 --icon=assets/icons/iguana_app_icon.ico --out=build/
+electron-packager . --platform=win32 --arch=x64 --icon=assets/icons/iguana_app_icon.ico --out=build/
 ```
 change architecture build parameter to ```--arch=x64``` for 64 bit build