question about my samsung galaxy s5

[AC Question]

How do I get my s5 to lock after an I get done with an incoming call???? After I receive an incoming call and I hang up my phone doesn't lock I have to lock the screen in order for it lock and I don't like that Id prefer it to lock automatically instead of manually locking it, any suggestions or how to fix this????

 

[B. Diddy]

There should be a setting in Settings>Security​ for Power button to automatically lock screen--would that work for you?