MonoMac reverting application icon change

Question

I'm converting a small c# application from windows to osx using MonoDevelop and MonoMac. I've changed the icon of the app using the Info.plist located inside the app contents directory by adding the CFBundleIconFile and the name of my icon, residing in the Resources directory. So far everything is fine, finder acknowledges the icon and it is correct in the "Get info"-page. However, when I start the app the correct icon starts bouncing, but a second later it changes into the MonoMac monkey(?) icon. Is there some way for me to keep my icon?