Plasterboard adhesive as a skim?

[markyyyyyy]

Hi, I have boarded over a repair and there is 2mm to ‘skim’ it level with the surrounding wall.

I am going to be wallpapering over it so I don’t need a paint like finish

Would it be suitable to do the job with some plasterboard adhesive? I have a huge bag remaining and seems OTT to have to buy a bag of multifinish to do the tiny job. Pic below
P.s the holes are for a Radiator bracket

Cheers

 

[foxhole]

Small bag of filler .

 

[Alastairreid]

Give it a go, tape the joints, never used adhesive as a filler what could possibly go wrong.

 

[simplesteve]

I'd give it a go with your adhesive, but as Alastair says, tape it first.
I've done similar to this with rapidset tile adhesive a couple of times.
You're wallpapering it, then sticking a radiator over the top of that : it'll be fine !