Broken retaining tab on car connector-can it be fixed

[danthe88]

Hello guys, while doing some job on my car, the retaining tab on the rear differential controller connector broke off.
The connector looks like this:

Circled is the broken tab.
Since the connector is part of the controller (what a stupid idea)-it can't be replaced...
Do you guys have any ideas on how to fix this, since my only idea, for now, is zip-ties, but since it is a very exposed part, it looks very ugly

 

[UNG]

Adhesive lined heat shrink tubing

 

[danthe88]

I will try to find tubing of that diameter, but I am not sure if there will be something that it will stick to, as this connector is totally integrated into the controller, so the "sticking" part is the exact same size as the mating connector...
This is how the controller looks:

 

[brianmoooore]

Silicon rubber sealant. Needs to be a special type that doesn't produce acetic acid as it cures.

 

[danthe88]

Thanks, I will try that...