Exclude build directory from locator results

[hegemon]

Hello,
I am using Qt Creator 4.6.0 to compile CMake project. The build directory keeps appearing in my searches and makes it very annoying.

How to exclude build directory from:

1. Method locator results (Ctrl+K , m )
2. Usages results (Ctrl+Shift+U)
3. Go to definition results (F2)

Thank you in advance.