Microsoft Access - Case Query

I've just try using MS Access 2007 now I want to update a column based on other column value, in MY SQL it was successfull running this query

UPDATE HAI
SET REGION=(
CASE
  WHEN (NUMREG LIKE '%1') THEN 'BDG'
  WHEN (NUMREG LIKE '%2') THEN 'JKT'
  WHEN (NUMREG LIKE '%3') THEN 'KNG'
END);

This query won't run in MS Access, there is error Sytax error (missing operator) in query expression. How can I solve this?