SSE Script trouble with a LoadDoor

[Laerithryn]

I'm having a problem getting a script to work on an existing vanilla loaddoor. All I need is for the door to SetObjectiveCompleted when the OnLockStateChanged happens. The script compiles fine but in game, nothing happens, it's dead Jim!

Scriptname UsedHouseKeyScript extends ObjectReference

Quest Property MyMod  Auto

Event OnLockStateChanged()
     if Islocked() == 0
Debug.Notification("Used house key to unlock the door")
MyMod.SetObjectiveCompleted(30)
     EndIf
ENDEVENT

Any ideas or help would be greatly appreciated. Thanks

Edit: Issue Resolved by simply updating the associated SEQ file.