QtCreator 3.2.1
Qt 5.3.2
Fedora 22

While in a debugging session, the debug window became un-docked from the Creator window. I was trying to enlarge the field separator at the top of the debug window, and inadvertently dragged it off the Creator window.

Now I can't get it to dock to the Creator window again. Even worse, it obscures the source code during a debug session, and I can't tag-and-drag it or move it.

Any solutions?