It doesn't matter so much because with a degree in electric engineering you are allowed to call yourself an Engineer/Ingenieur, and that is the only thing that matters. It is a Ordnungswidrigkeit (administrative offence) if you call yourself an engineer if you don't have a at least 3 year degree from a university or university of applied sciences.

With a degree in computer science you are also allowed to call yourself an engineer in Germany, for anyone reading this and wondering.