Error while creating a Lua listener in 2.4.2 with filter

edit

This code worked in 2.0.1rc0:

wlan_good = Listener.new(nil, "wlan.fcs_good == 1")

In 2.4.2, I now have the error:

tshark: Lua: Error during loading: [string "retries.lua"]:5: Error while registering tap: Filter "wlan.fcsgood == 1" is invalid - Neither "wlan.fcsgood" nor "1" are field or protocol names.

Did the filter syntax change?