Change the name of my reference list - in word


I have at some point given my reference list (in word) an extremly silly name.
Each time i update citation in word it changes the name of the list back to this.

I’m looking for an answer on where or how i change it to an appropiate name. 

See picture for further information on which field i want to change the “standard” name of.
It is marked with a red circle.