Scaling Image inverse problem

[TheEditor]

Hello. I started working with GIMP a few months ago, and I faced the problem the other day.

While scaling selected area I drag it outwards to make it bigger, however the program makes the area smaller. The opposite happens when I try to make the area smaler. 

How to solve this problem?

[Ofnuts]

You are likely in "Corrective" mode in the Tool options.