Killing unit kind that enters an area

[Arieegee]

Hi
im making a map and i need one specific kind of unit to die when it enters certain area, that unit is infernal
can someone help me what trigger i should apply to that area so all infernals (including summoned by "hell rain" or "hell" spell) that enters that area dies automaticaly?

 

[Warseeker]

Events :
Unit - A unit enter <Region X>

Condition :
Unit type of (Triggering unit) Equal to Infernal

Actions :
Unit - Kill (Triggering unit)

 

[Arieegee]

Events :
Unit - A unit enter <Region X>

Condition :
Unit type of (Triggering unit) Equal to Infernal

Actions :
Unit - Kill (Triggering unit)

it worked thx for help