It is provided a method, including monitoring if an information on an update of a system information of a first cell is received; checking if a terminal is registered as being served by at least one cell of a group of one or more cells including the first cell; checking if the terminal becomes reachable after being asleep; requesting to page the terminal by a paging message if the information on the update is received, the terminal is served by the at least one cell of the group, and the terminal becomes reachable, wherein the paging message includes an indication on the update.