Uninstall Appium 1.4.1

I’m on Mac, I want to uninstall Appium 1.4.1 because I have too much regression with it and install Appium 1.3.4.
But when I do
“npm uninstall appium”
I have
"npm WARN uninstall not installed in /Users/ericqa/node_modules: “appium” "

But Appium is still installed, because I can run it :
info: Welcome to Appium v1.4.1 (REV ce6220829063679bcccf5724515c29569c4a16d9)
info: Appium REST http interface listener started on
info: Console LogLevel: debug

So where is it installed ? I’m pretty sure I’ve installed Appium with “npm install -g appium”
Thanks a lot !

I get it ! I have to do “npm uninstall -g appium” !
I didn’t get exactly what is this “-g” but it’s ok now

it stands for global