Compur shutter cable release socket loose - easy fix?

[Jimi]

I bought a lens that comes in a Compur 1 (chrome ring, older style I guess) and the cable release socket seems really loose, it wiggles a good bit when I insert a cable release. Is this possible to fix, tightening some retaining nut on the inside?

I have a Linhof board with the nifty fast action thingy, but I don't have the right Linhof cable release for this, so...

[John Koehrer]

loose retaining screw for the socket.