Compiled MatLab from console, prompt returns immediately while app is still running.

I have compiled my simple MatLab function so I can run it from a Windows console as a command line app. After I enter the command and its single argument, the prompt return immediately even though the command is still running, as if running in the background.

Why does this happen and how do I stop it? I want it to behave like a normal application and not return to the prompt until complete.